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Technical Data Sheet
PartsTable / COMPONENT / NAS51-98
NAS51-98 ✓ 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,RETAINING is a the manufacturer industrial component. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5325-00-804-2026, 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
NAS51-98
NSN: 5325-00-804-2026
FSC: 5325
CAGE: 80205 — NATIONAL AEROSPACE STANDARDS COMMITTEE AEROSPACE INDUSTRIES ASSOCIATION OF AMERICA INC NOT FOR RFQ OR SOLICITATION USE (USA)
SPECIFICATIONS
Part NumberNAS51-98
NSN5325-00-804-2026
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: NAS51-98 · 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 26
510098Interchangeable
interchangeable cross-reference
interchangeable
3019-01Interchangeable
interchangeable cross-reference
interchangeable
1400-98-SInterchangeable
interchangeable cross-reference
interchangeable
MS16624-3098Interchangeable
interchangeable cross-reference
interchangeable
43888Interchangeable
interchangeable cross-reference
interchangeable
31341Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is NAS51-98?
NAS51-98 is a RING,RETAINING.
What parts can replace NAS51-98?
There are 26 known substitutes for NAS51-98: 510098, 3019-01, 1400-98-S and 23 more. Substitute compatibility should be verified for your specific system.
Is NAS51-98 still available?
NAS51-98 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