193257 — PISTON,VALVE

✓ Government record, cited

— · BOLT SCREW

PRODUCT OVERVIEW

193257: PISTON,VALVE.

The PISTON,VALVE is a the manufacturer industrial component. Key specifications include special_features: MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION; CONE SHAPED. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-019-3257, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS

193257

NSN: 5305-00-019-3257
NIINs: 000193257, 000334815, 012337332
FSC: 5305 — Screws
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)

SPECIFICATIONS

special_features	MAGNETIC PERMEABILITY SHALL NOT EXCEED 2.0 AFTER FABRICATION; CONE SHAPED
NSN	5305-00-019-3257

COMPONENT DIAGRAM

KEY FEATURES

•

HEAD HEIGHT: 0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN

•

SCREW SURFACE TREATMENT: CADMIUM AND CHROMATE OR ZINC AND CHROMATE

•

FASTENER LENGTH: 0.250 INCHES NOMINAL IN

•

SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633-CANCELLED FED SPEC 1ST MATERIAL RESPONSE OR QQ-W-409,GRADE 2,3 OR 4 FED SPEC 2ND MATERIAL RESPONSE

•

THREAD LENGTH: 0.250 INCHES MAXIMUM IN

•

NOMINAL THREAD DIAMETER: 0.138 INCHES IN

•

HEAD STYLE: PAN NO. 2

•

THREAD DIRECTION: RIGHT-HAND

TECHNICAL CHARACTERISTICS

HEAD HEIGHT	0.072 INCHES MINIMUM AND 0.082 INCHES MAXIMUM IN
SCREW SURFACE TREATMENT	CADMIUM AND CHROMATE OR ZINC AND CHROMATE
FASTENER LENGTH	0.250 INCHES NOMINAL IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATION	QQ-S-633-CANCELLED FED SPEC 1ST MATERIAL RESPONSE OR QQ-W-409,GRADE 2,3 OR 4 FED SPEC 2ND MATERIAL RESPONSE
THREAD LENGTH	0.250 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER	0.138 INCHES IN
HEAD STYLE	PAN NO. 2
THREAD DIRECTION	RIGHT-HAND
NONDEFINITIVE SPEC/STD DATA	1 TYPE AND 9S STYLE
SCREW MATERIAL	STEEL

SUBSTITUTES & CROSS-REFERENCES 4

500 L 166.020Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

FFS92TYPE1STYLE9SReference document

Same NSN cross-reference

Reference document — Identification reference

12Z1131-25Reference document

Same NSN cross-reference

Reference document — Secondary reference

MS35225-26Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

LIFECYCLE

NSN statusCancelled· U.S. Government catalog

No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 193257?

193257 is a PISTON,VALVE.

What parts can replace 193257?

There are 4 known substitutes for 193257: 500 L 166.020, FFS92TYPE1STYLE9S, 12Z1131-25 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 193257?

193257 is cataloged in the U.S. Government catalog under NSN 5305-00-019-3257. This indicates validated use in U.S. government and defense supply chains.

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