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397739 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

397739: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: RUBBER FLUOROCARBON CLASS FPM, cross-sectional_height: 0.060 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-098-4762, 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
397739
NSN: 5310-00-098-4762
NIINs: 000984762, 008085250
FSC: 5310 — Nuts and Washers
CAGE: 06848 — HONEYWELL INTERNATIONAL INC DIV AEROSPACE-SOUTH BEND (BENDIX DR) (USA)
SPECIFICATIONS
materialRUBBER FLUOROCARBON CLASS FPM
cross-sectional_height0.060 INCHES NOMINAL IN
NSN5310-00-098-4762
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 397739 · OEM ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
EXTERNAL PREBENT KEY LENGTH: 0.094 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 4505 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL THICKNESS: 0.029 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.188 INCHES NOMINAL IN
•
EXTERNAL PREBENT KEY WIDTH: 0.094 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY 260 OVERALL
•
HOLE DIAMETER: 0.203 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
EXTERNAL PREBENT KEY LENGTH0.094 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 4505 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MATERIAL THICKNESS0.029 INCHES MINIMUM AND 0.033 INCHES MAXIMUM IN
EXTERNAL STRAIGHT KEY WIDTH0.188 INCHES NOMINAL IN
EXTERNAL PREBENT KEY WIDTH0.094 INCHES MINIMUM AND 0.098 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY 260 OVERALL
HOLE DIAMETER0.203 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — no further procurement; issued until stock is exhaustedNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 397739?
397739 is a WASHER,KEY.
What is the NSN for 397739?
397739 is cataloged in the U.S. Government catalog under NSN 5310-00-098-4762. 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.