AS51997 — RING,LOCK,SERRATED

✓ Government record, cited

— · COMPONENT

PRODUCT OVERVIEW

AS51997: RING,LOCK,SERRATED.

The RING,LOCK,SERRATED is a the manufacturer industrial component. Key specifications include material: IRON ALLOY 660, overall_height: 0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN, pilot_diameter: 0.724 INCHES MINIMUM AND 0.739 INCHES MAXIMUM IN, inside_diameter: 0.571 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN, surface_treatment: PASSIVATE, inner_serration_quantity: 26. This part is cataloged in the U.S.

Government catalog under NSN 5365-01-256-9799, 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

AS51997

NSN: 5365-01-256-9799
FSC: 5365 — Bushings, Rings, Shims, and Spacers
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)

SPECIFICATIONS

material	IRON ALLOY 660
overall_height	0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN
pilot_diameter	0.724 INCHES MINIMUM AND 0.739 INCHES MAXIMUM IN
inside_diameter	0.571 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
surface_treatment	PASSIVATE
inner_serration_quantity	26
outer_serration_quantity	16
overall_outside_diameter	0.778 INCHES MINIMUM AND 0.787 INCHES MAXIMUM IN
material_document_and_classification	AMS 5731,TY A286JGAAMS 5734,TY A286 ASSN STD SINGLE MATERIAL RESPONSE
side_outer_serrations_omitted_for_close_edge_installation	TWO SIDES
NSN	5365-01-256-9799

COMPONENT DIAGRAM

KEY FEATURES

•

MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5731,TY A286JGAAMS 5734,TY A286 ASSN STD SINGLE MATERIAL RESPONSE

•

OVERALL OUTSIDE DIAMETER: 0.778 INCHES MINIMUM AND 0.787 INCHES MAXIMUM IN

•

INNER SERRATION QUANTITY: 26

•

PILOT DIAMETER: 0.724 INCHES MINIMUM AND 0.739 INCHES MAXIMUM IN

•

INSIDE DIAMETER: 0.571 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN

•

SIDE OUTER SERRATIONS OMITTED FOR CLOSE EDGE INSTALLATION: TWO SIDES

•

SURFACE TREATMENT: PASSIVATE

TECHNICAL CHARACTERISTICS

OVERALL HEIGHT	0.156 INCHES MINIMUM AND 0.171 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATION	AMS 5731,TY A286JGAAMS 5734,TY A286 ASSN STD SINGLE MATERIAL RESPONSE
OVERALL OUTSIDE DIAMETER	0.778 INCHES MINIMUM AND 0.787 INCHES MAXIMUM IN
INNER SERRATION QUANTITY	26
PILOT DIAMETER	0.724 INCHES MINIMUM AND 0.739 INCHES MAXIMUM IN
INSIDE DIAMETER	0.571 INCHES MINIMUM AND 0.578 INCHES MAXIMUM IN
SIDE OUTER SERRATIONS OMITTED FOR CLOSE EDGE INSTALLATION	TWO SIDES
SURFACE TREATMENT	PASSIVATE
OUTER SERRATION QUANTITY	16
MATERIAL	IRON ALLOY 660

OTHER ITEMS IN FSC 5365 — Bushings, Rings, Shims, and Spacers

Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.

5365-00-000-6078 5365-00-000-7436 5365-00-001-1292 5365-00-001-1365 5365-00-001-1841 5365-00-001-1915 5365-00-001-1916 5365-00-001-1940

SUBSTITUTES & CROSS-REFERENCES 1

MS51997E107PReference document

Same NSN cross-reference

Reference document — Secondary reference

LIFECYCLE

NSN statusActive· U.S. Government catalog

Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required

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FREQUENTLY ASKED QUESTIONS

What is AS51997?

AS51997 is a RING,LOCK,SERRATED.

What parts can replace AS51997?

There is 1 known substitute for AS51997: MS51997E107P. Substitute compatibility should be verified for your specific system.

What is the NSN for AS51997?

AS51997 is cataloged in the U.S. Government catalog under NSN 5365-01-256-9799. This indicates validated use in U.S. government and defense supply chains.

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