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77852 — BASE ASSEMBLY

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

77852: BASE ASSEMBLY.

The BASE ASSEMBLY is a the manufacturer industrial component. Key specifications include special_features: CONTROL RIGHTS & CREATIVE DESIGN. This part is cataloged in the U.S.

Government catalog under NSN 5315-00-373-8964, 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
77852
NSN: 5315-00-373-8964
NIINs: 003738964, 012099773, 016470296
FSC: 5315 — Nails, Machine Keys, and Pins
CAGE: 73030 — HAMILTON SUNDSTRAND CORPORATION DBA COLLINS AEROSPACE (USA)
SPECIFICATIONS
special_featuresCONTROL RIGHTS & CREATIVE DESIGN
NSN5315-00-373-8964
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 77852 · 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
•
FIRST END STYLE: SQUARE
•
HARDNESS RATING: 26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
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MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
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PIN OVERALL DIAMETER: 0.1247 INCHES MINIMUM AND 0.1253 INCHES MAXIMUM IN
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PIN OVERALL LENGTH: 0.445 INCHES MINIMUM AND 0.455 INCHES MAXIMUM IN
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SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
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MATERIAL: IRON ALLOY 660 OVERALL
TECHNICAL CHARACTERISTICS
FIRST END STYLESQUARE
HARDNESS RATING26.0 ROCKWELL C MINIMUM AND 33.0 ROCKWELL C MAXIMUM OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5732 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
PIN OVERALL DIAMETER0.1247 INCHES MINIMUM AND 0.1253 INCHES MAXIMUM IN
PIN OVERALL LENGTH0.445 INCHES MINIMUM AND 0.455 INCHES MAXIMUM IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MATERIALIRON ALLOY 660 OVERALL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 77852?
77852 is a BASE ASSEMBLY.
What is the NSN for 77852?
77852 is cataloged in the U.S. Government catalog under NSN 5315-00-373-8964. 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.