Standard Spring Plungers

Steel

Standard spring plungers offer long travel, large bearing surfaces and numerous material and design options including an optional locking element.

Typical Uses

Positioning
Indexing
Ejecting
Locking
Latching
Detents
Contacts
Lifters
Insulators

Special Features

Easy installation
Accurate alignment
Heavy and light end forces
Self-lubricating materials
Corrosion resistance
Wear resistance
Non-marring materials
Non-chipping materials
Special environments
Insulating properties

ANSI (Inch/American) Tables

Standard Spring Plungers - Steel w/Steel Nose

Part No.		End Force, (Lbs.)			A	B	C	D	ROHS	CAD
Non-Locking	Locking	Initial	Mid.	Final	A	B	C	D	ROHS	CAD
S48	S48P	1.5	3.0	4.5	6-32	0.53	0.063	0.044-0.045
S48A	S48AP	1.0	1.3	1.6	6-32	0.38	0.063	0.044-0.045
S50	S50P	2.7	5.0	7.3	8-32	0.63	0.094	0.069-0.070
S52	S52P	2.9	7.0	11.1	10-32	0.75	0.125	0.091-0.092
S54	S54N	3.0	8.0	13.0	1/4-20	1.00	0.188	0.117-0.118
S54A	S54AN	3.0	8.0	13.0	1/4-28	1.00	0.188	0.117-0.118
S54B	S54BN	2.0	5.5	9.0	1/4-20	0.75	0.125	0.117-0.118
S56	S56N	3.0	9.0	15.0	5/16-18	1.00	0.188	0.117-0.118
S58	S58N	5.5	10.0	14.5	3/8-16	1.13	0.188	0.186-0.187
S60	S60N	6.6	12.0	17.4	1/2-13	1.25	0.250	0.247-0.248
S62	S62N	10.5	18.0	25.5	5/8-11	1.50	0.313	0.308-0.310
S64	S64N	6.7	22.0	37.3	3/4-10	1.75	0.313	0.373-0.374
S66	S66N	16.0	42.0	68.0	1-8	2.41	0.500	0.496-0.498

Standard Spring Plungers - Steel w/Stainless Steel Nose

Part No.		End Force, (Lbs.)			A	B	C	D	ROHS	CAD
Non-Locking	Locking	Initial	Mid.	Final	A	B	C	D	ROHS	CAD
CS48	CS48P	1.5	3.0	4.5	6-32	0.53	0.063	0.044-0.045
CS48A	CS48AP	1.0	1.3	1.6	6-32	0.38	0.063	0.044-0.045
CS50	CS50P	2.7	5.0	7.3	8-32	0.63	0.094	0.069-0.070
CS52	CS52P	2.9	7.0	11.1	10-32	0.75	0.125	0.091-0.092
CS54	CS54N	3.0	8.0	13.0	1/4-20	1.00	0.188	0.117-0.118
CS54A	CS54AN	3.0	8.0	13.0	1/4-28	1.00	0.188	0.117-0.118
CS54B	CS54BN	2.0	5.5	9.0	1/4-20	0.75	0.125	0.117-0.118
CS56	CS56N	3.0	9.0	15.0	5/16-18	1.00	0.188	0.133-0.135
CS58	CS58N	5.5	10.0	14.5	3/8-16	1.13	0.188	0.186-0.187
CS60	CS60N	6.6	12.0	17.4	1/2-13	1.25	0.250	0.247-0.248
CS62	CS62N	10.5	18.0	25.5	5/8-11	1.50	0.313	0.308-0.310
CS64	CS64N	6.7	22.0	37.3	3/4-10	1.75	0.313	0.373-0.374
CS66	CS66N	16.0	42.0	68.0	1-8	1.41	0.500	0.496-0.498

Light End Force Standard Spring Plungers - Steel w/Steel Nose

Part No.			End Force, (Lbs.)		A	B	C	D	ROHS	CAD
Non-Locking	Locking	Initial	Mid.	Final	A	B	C	D	ROHS	CAD
S49	S49P	0.5	1.0	1.5	6-32	0.53	0.063	0.044-0.045
S51	S51P	0.7	1.5	2.3	8-32	0.63	0.094	0.069-0.070
S53	S53P	1.3	2.0	2.7	10-32	0.75	0.125	0.091-0.092
S55	S55N	1.0	2.5	4.0	1/4-20	1.00	0.188	0.117-0.118
S55A	S55AN	1.0	2.5	4.0	1/4-28	1.00	0.188	0.117-0.118
S57	S57N	1.5	3.0	4.5	5/16-18	1.00	0.188	0.133-0.135
S59	S59N	2.8	5.0	7.2	3/8-16	1.13	0.188	0.186-0.187
S61	S61N	2.7	6.0	9.3	1/2-13	1.25	0.250	0.247-0.248
S63	S63N	3.5	7.0	10.5	5/8-11	1.50	0.313	0.308-0.310
S67	S67N	4.0	17.5	31.0	1-8	2.41	0.500	0.496-0.498

Light End Force Standard Spring Plungers - Steel w/Stainless Steel Nose

Part No.		End Force, (Lbs.)			A	B	C	D	ROHS	CAD
Non-Locking	Locking	Initial	Mid.	Final	A	B	C	D	ROHS	CAD
CS49	CS49P	0.5	1.0	1.5	6-32	0.53	0.063	0.044-0.045
CS51	CS51P	0.7	1.5	2.3	8-32	0.63	0.094	0.069-0.070
CS53	CS53P	1.3	2.0	2.7	10-32	0.75	0.125	0.091-0.092
CS55	CS55N	1.0	2.5	4.0	1/4-20	1.00	0.188	0.117-0.118
CS55A	CS55AN	1.0	2.5	4.0	1/4-28	1.00	0.188	0.117-0.118
CS57	CS57N	1.5	3.0	4.5	5/16-18	1.00	0.188	0.133-0.135
CS59	CS59N	2.8	5.0	7.2	3/8-16	1.13	0.188	0.186-0.187
CS61	CS61N	2.7	6.0	9.3	1/2-13	1.25	0.250	0.247-0.248
CS63	CS63N	3.5	7.0	10.5	5/8-11	1.50	0.313	0.308-0.310
CS67	CS67N	4.0	17.5	31.0	1-8	2.41	0.500	0.496-0.498

Standard Spring Plungers - Steel w/Steel Nose

Part No.		End Force, N		A	B	C	D	ROHS	CAD
Non-Locking	Locking	Initial	Final	A	B	C	D	ROHS	CAD
SM4A	SM4AP	12.0	22.7	M4 x 0.7	16.0	1.5	1.8
SM5A	SM5AP	13.0	39.6	M5 x 0.8	19.0	2.3	2.3
SM6A	SM6AP	18.0	50.0	M6 x 1.0	20.0	2.5	2.7
SM8A	SM8AN	25.0	70.0	M8 x 1.25	22.0	3.0	3.5
SM10A	SM10AN	25.0	70.0	M10 x 1.5	22.0	3.0	4.0
SM12A	SM12AN	45.0	110.0	M12 x 1.75	28.0	4.0	6.0
SM16A	SM16AN	46.7	75.2	M16 x 2.0	38.1	5.0	7.8

Light End Force Standard Spring Plungers - Steel w/Steel Nose

Part No.		End Force, N		A	B	C	D	ROHS	CAD
Non-Locking	Locking	Initial	Final	A	B	C	D	ROHS	CAD
SML4A	SML4AP	3.0	7.6	M4 x 0.7	16.0	1.5	1.8
SML5A	SML5AP	5.8	10.4	M5 x 0.8	19.0	2.3	2.3
SML6A	SML6AP	7.0	20.0	M6 x 1.0	20.0	2.5	2.7
SML8A	SML8AN	9.0	35.0	M8 x 1.25	22.0	3.0	3.5
SML10A	SML10AN	9.0	35.0	M10 x 1.5	22.0	3.0	3.5
SML12A	SML12AN	10.0	55.0	M12 x 1.75	28.0	4.0	6.0
SML16A	SML16AN	15.6	35.2	M16 x 2.0	38.1	5.0	7.8

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