Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW
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 Federal Logistics Information System (FLIS) 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 FSC:5305 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
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD CLASS: 2A A
•
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
•
HEAD DIAMETER: 0.256 INCHES MINIMUM AND 0.270 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.250 INCHES NOMINAL IN
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SCREW SURFACE TREATMENT: CADMIUM AND CHROMATE OR ZINC AND CHROMATE
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HEAD STYLE: PAN NO. 2
•
SCREW MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTION
RIGHT-HAND
THREAD CLASS
2A A
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