631A551-1 — ROD,PISTON

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

631A551-1: ROD,PISTON.

The ROD,PISTON is a the manufacturer industrial component. Key specifications include general_characteristics_item_description: BRASS;7.438 IN.LG;0.873 IN.DIA;0.625-11 UNC THD;THD LENGTH 0.688 IN;ONE HOLE 0.500 IN.DIA IN. This part is cataloged in the U.S.

Government catalog under NSN 3040-00-972-8890, 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

631A551-1

NSN: 3040-00-972-8890
NIINs: 009728890, 010885115
FSC: 3040 — Miscellaneous Power Transmission Equipment
CAGE: 24446 — GENERAL ELECTRIC COMPANY (USA)

SPECIFICATIONS

general_characteristics_item_description	BRASS;7.438 IN.LG;0.873 IN.DIA;0.625-11 UNC THD;THD LENGTH 0.688 IN;ONE HOLE 0.500 IN.DIA IN
NSN	3040-00-972-8890

COMPONENT DIAGRAM

KEY FEATURES

•

FIRST END TONGUE THICKNESS: 0.375 INCHES NOMINAL IN

•

SECOND END EXTERNAL THREAD LENGTH: 0.625 INCHES NOMINAL IN

•

FIRST END DIAMETER: 0.6250 INCHES NOMINAL IN

•

FIRST END TONGUE WIDTH: 0.872 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN

•

FIRST END STEP LENGTH: 1.250 INCHES NOMINAL IN

•

SECOND END DIAMETER: 0.6250 INCHES NOMINAL IN

•

FIRST END STYLE: TONGUE

TECHNICAL CHARACTERISTICS

FIRST END TONGUE THICKNESS	0.375 INCHES NOMINAL IN
SECOND END EXTERNAL THREAD LENGTH	0.625 INCHES NOMINAL IN
FIRST END DIAMETER	0.6250 INCHES NOMINAL IN
FIRST END TONGUE WIDTH	0.872 INCHES MINIMUM AND 0.873 INCHES MAXIMUM IN
FIRST END STEP LENGTH	1.250 INCHES NOMINAL IN
SECOND END DIAMETER	0.6250 INCHES NOMINAL IN
FIRST END STYLE	TONGUE
OVERALL LENGTH	1.250 INCHES NOMINAL IN
END SIMILARITY	NOT IDENTICAL
SECOND END STYLE	EXTERNAL THREADED

SUBSTITUTES & CROSS-REFERENCES 4

631A55-1Reference document

Same NSN cross-reference

Reference document — Secondary reference

631A551-001Reference document

Same NSN cross-reference

Reference document — Secondary reference

631A551 PIECE 1Reference document

Same NSN cross-reference

Reference document — Advisory reference — outside the item-of-supply concept

631A551PC1Reference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is 631A551-1?

631A551-1 is a ROD,PISTON.

What parts can replace 631A551-1?

There are 4 known substitutes for 631A551-1: 631A55-1, 631A551-001, 631A551 PIECE 1 and 1 more. Substitute compatibility should be verified for your specific system.

What is the NSN for 631A551-1?

631A551-1 is cataloged in the U.S. Government catalog under NSN 3040-00-972-8890. This indicates validated use in U.S. government and defense supply chains.

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