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Technical Data Sheet
PartsTable / COMPONENT / A2131
A2131 ✓ Verified by PartsTable
— · BOLT SCREW
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The RING ASSEMBLY,PURGI is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING OVERALL, general_characteristics_item_description: BRONZE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-221-2770, 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
A2131
NSN: 5325-00-221-2770
FSC: 5325
CAGE: 57771 — EDWIN B. STIMPSON COMPANY, INC. DBA STIMPSON (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
general_characteristics_item_descriptionBRONZE
NSN5325-00-221-2770
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: A2131 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
GS2-4Interchangeable
interchangeable cross-reference
interchangeable
230-207-028Interchangeable
interchangeable cross-reference
interchangeable
AN515C6-6Interchangeable
interchangeable cross-reference
interchangeable
5000 251904Interchangeable
interchangeable cross-reference
interchangeable
2006 4Interchangeable
interchangeable cross-reference
interchangeable
41-11051Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A2131?
A2131 is a RING ASSEMBLY,PURGI.
What parts can replace A2131?
There are 24 known substitutes for A2131: GS2-4, 230-207-028, AN515C6-6 and 21 more. Substitute compatibility should be verified for your specific system.
Is A2131 still available?
A2131 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026