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GR540AA1 — RING,RETAINING

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

GR540AA1: RING,RETAINING.

The RING,RETAINING is a the manufacturer industrial component. This part is cataloged in the U.S. Government catalog under NSN 5325-00-758-1034, 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
GR540AA1
NSN: 5325-00-758-1034
FSC: 5325 — Fastening Devices
CAGE: 26512 — NORTHROP GRUMMAN SYSTEMS CORPORATION (USA)
SPECIFICATIONS
Part NumberGR540AA1
NSN5325-00-758-1034
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: GR540AA1 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 8
5223430-3Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
615396-6Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
740139-01Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
HS4497-1Reference document
Same NSN cross-reference
Reference document — Secondary reference
1716-001Reference document
Same NSN cross-reference
Reference document — Secondary reference
963429-1Reference document
Same NSN cross-reference
Reference document — Vendor item drawing reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is GR540AA1?
GR540AA1 is a RING,RETAINING.
What parts can replace GR540AA1?
There are 8 known substitutes for GR540AA1: 5223430-3, 615396-6, 740139-01 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for GR540AA1?
GR540AA1 is cataloged in the U.S. Government catalog under NSN 5325-00-758-1034. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.