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969C539-1 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

969C539-1: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: STEEL COMP 631 OVERALL, hole_diameter: 0.877 INCHES MINIMUM AND 0.887 INCHES MAXIMUM IN, outside_diameter: 1.600 INCHES MINIMUM AND 1.620 INCHES MAXIMUM IN, material_thickness: 0.040 INCHES NOMINAL IN, external_key_quantity: 13, external_prebent_key_width: 0.156 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-366-7604, 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
969C539-1
NSN: 5310-01-366-7604
FSC: 5310 — Nuts and Washers
CAGE: 58417 — SUNDSTRAND CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 631 OVERALL
hole_diameter0.877 INCHES MINIMUM AND 0.887 INCHES MAXIMUM IN
outside_diameter1.600 INCHES MINIMUM AND 1.620 INCHES MAXIMUM IN
material_thickness0.040 INCHES NOMINAL IN
external_key_quantity13
internal_key_quantity2
external_prebent_key_width0.156 INCHES NOMINAL IN
internal_prebent_key_width0.156 INCHES NOMINAL IN
internal_prebent_key_length0.050 INCHES NOMINAL IN
overall_distance_including_keys2.040 INCHES MINIMUM AND 2.060 INCHES MAXIMUM IN
material_document_and_classificationAMS 5528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
NSN5310-01-366-7604
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 969C539-1 · 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
•
INTERNAL PREBENT KEY WIDTH: 0.156 INCHES NOMINAL IN
•
OVERALL DISTANCE INCLUDING KEYS: 2.040 INCHES MINIMUM AND 2.060 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.600 INCHES MINIMUM AND 1.620 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.040 INCHES NOMINAL IN
•
EXTERNAL KEY QUANTITY: 13
•
INTERNAL PREBENT KEY LENGTH: 0.050 INCHES NOMINAL IN
•
EXTERNAL PREBENT KEY WIDTH: 0.156 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
INTERNAL PREBENT KEY WIDTH0.156 INCHES NOMINAL IN
OVERALL DISTANCE INCLUDING KEYS2.040 INCHES MINIMUM AND 2.060 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5528 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.600 INCHES MINIMUM AND 1.620 INCHES MAXIMUM IN
MATERIAL THICKNESS0.040 INCHES NOMINAL IN
EXTERNAL KEY QUANTITY13
INTERNAL PREBENT KEY LENGTH0.050 INCHES NOMINAL IN
EXTERNAL PREBENT KEY WIDTH0.156 INCHES NOMINAL IN
MATERIALSTEEL COMP 631 OVERALL
INTERNAL KEY QUANTITY2
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 969C539-1?
969C539-1 is a WASHER,KEY.
What is the NSN for 969C539-1?
969C539-1 is cataloged in the U.S. Government catalog under NSN 5310-01-366-7604. 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.