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881821 — 881821

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

881821: 881821.

The 881821 is a the manufacturer industrial component. Key specifications include overall_width: 2.688 INCHES NOMINAL IN, overall_height: 0.312 INCHES NOMINAL IN, overall_length: 3.000 INCHES NOMINAL IN, end_item_identification: 6625010409874. This part is cataloged in the U.S.

Government catalog under NSN 5325-00-598-0766, 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
MRO→ MRO_GENERAL→ 881821
NSN: 5325-00-598-0766
NIINs: 005980766, 005980768, 010622811
FSC: 5325 — Fastening Devices
CAGE: 19315 — HONEYWELL INTL INC DEFENSE AVIONICS SYSTEMS FORMER BENDIX NAVIGATION AND CONTROL SYSTEMS (USA)
SPECIFICATIONS
overall_width2.688 INCHES NOMINAL IN
overall_height0.312 INCHES NOMINAL IN
overall_length3.000 INCHES NOMINAL IN
end_item_identification6625010409874
NSN5325-00-598-0766
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 881821 · 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
KEY FEATURES
•
USAGE DESIGN: EXTERNAL
•
END STYLE: 90 DEGREE PARALLEL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-890 (SHIPS),CLASS C MIL SPEC SINGLE MATERIAL RESPONSE
•
CROSS-SECTIONAL SHAPE STYLE: ROUNDED CORNERS
•
OUTSIDE DIAMETER: 0.900 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN
•
MAJOR THICKNESS: 0.031 INCHES NOMINAL IN
•
INSIDE DIAMETER: 0.438 INCHES NOMINAL IN
•
CASEHARDENING INDICATOR: CASEHARDENED
TECHNICAL CHARACTERISTICS
USAGE DESIGNEXTERNAL
END STYLE90 DEGREE PARALLEL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-890 (SHIPS),CLASS C MIL SPEC SINGLE MATERIAL RESPONSE
CROSS-SECTIONAL SHAPE STYLEROUNDED CORNERS
OUTSIDE DIAMETER0.900 INCHES MINIMUM AND 0.905 INCHES MAXIMUM IN
MAJOR THICKNESS0.031 INCHES NOMINAL IN
INSIDE DIAMETER0.438 INCHES NOMINAL IN
CASEHARDENING INDICATORCASEHARDENED
RING STYLESTRAIGHT GAP
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Semi-active item — no replacement plannedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 881821?
881821 is a 881821. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 881821?
881821 is cataloged in the U.S. Government catalog under NSN 5325-00-598-0766. 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.