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8900774P1 — WASHER,KEY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

8900774P1: WASHER,KEY.

The WASHER,KEY is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY OVERALL, hole_diameter: 0.166 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN, outside_diameter: 0.278 INCHES MINIMUM AND 0.288 INCHES MAXIMUM IN, special_features: BOTH INTERNAL KEYS BENT DOWNWARD 90 DEGREES, style_designator: KEY, material_thickness: 0.0159 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-522-2263, 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
8900774P1
NSN: 5310-00-522-2263
FSC: 5310 — Nuts and Washers
CAGE: 96972 — GENERAL ELECTRIC CO FLIGHT PROPULSION DIVISION OF ELECTRONIC ATOMIC AND DEFENSE SYSTEMS GROUP (USA)
SPECIFICATIONS
materialCOPPER ALLOY OVERALL
hole_diameter0.166 INCHES MINIMUM AND 0.170 INCHES MAXIMUM IN
outside_diameter0.278 INCHES MINIMUM AND 0.288 INCHES MAXIMUM IN
special_featuresBOTH INTERNAL KEYS BENT DOWNWARD 90 DEGREES
style_designatorKEY
material_thickness0.0159 INCHES NOMINAL IN
external_key_quantity8
internal_key_quantity2
internal_prebent_key_width0.043 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
external_straight_key_width0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
internal_prebent_key_length0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
internal_straight_key_width0.043 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
NSN5310-00-522-2263
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8900774P1 · 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 STRAIGHT KEY WIDTH: 0.043 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
•
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY: 0.112 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN
•
INTERNAL PREBENT KEY WIDTH: 0.043 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 0.425 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: KEY
•
OUTSIDE DIAMETER: 0.278 INCHES MINIMUM AND 0.288 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.0159 INCHES NOMINAL IN
•
EXTERNAL STRAIGHT KEY WIDTH: 0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
INTERNAL STRAIGHT KEY WIDTH0.043 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
DISTANCE FROM CENTERLINE TO INSIDE OF PREBENT KEY0.112 INCHES MINIMUM AND 0.118 INCHES MAXIMUM IN
INTERNAL PREBENT KEY WIDTH0.043 INCHES MINIMUM AND 0.047 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS0.425 INCHES MINIMUM AND 0.435 INCHES MAXIMUM IN
STYLE DESIGNATORKEY
OUTSIDE DIAMETER0.278 INCHES MINIMUM AND 0.288 INCHES MAXIMUM IN
MATERIAL THICKNESS0.0159 INCHES NOMINAL IN
EXTERNAL STRAIGHT KEY WIDTH0.058 INCHES MINIMUM AND 0.068 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY8
INTERNAL PREBENT KEY LENGTH0.032 INCHES MINIMUM AND 0.042 INCHES MAXIMUM IN
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 8900774P1?
8900774P1 is a WASHER,KEY.
What is the NSN for 8900774P1?
8900774P1 is cataloged in the U.S. Government catalog under NSN 5310-00-522-2263. 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.