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4537B77H05 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4537B77H05: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include special_features: 0.312 DIA SIZE FOR SPACE HTR, end_item_identification: CORE&FRAME ASSEMBLY 2-68 X 66, part_name_assigned_by_controlling_agency: WASHER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-616-5769, 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
4537B77H05
NSN: 5310-01-616-5769
FSC: 5310 — Nuts and Washers
CAGE: 04808 — CURTISS-WRIGHT ELECTRO-MECHANICAL CORPORATION DIV CURTISS-WRIGHT EMD (USA)
SPECIFICATIONS
special_features0.312 DIA SIZE FOR SPACE HTR
end_item_identificationCORE&FRAME ASSEMBLY 2-68 X 66
part_name_assigned_by_controlling_agencyWASHER
NSN5310-01-616-5769
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4537B77H05 · 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
TECHNICAL CHARACTERISTICS
SPECIAL FEATURES0.312 DIA SIZE FOR SPACE HTR
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER
END ITEM IDENTIFICATIONCORE&FRAME ASSEMBLY 2-68 X 66
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 1
6D69248ITEM24Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
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 4537B77H05?
4537B77H05 is a WASHER,FLAT.
What parts can replace 4537B77H05?
There is 1 known substitute for 4537B77H05: 6D69248ITEM24. Substitute compatibility should be verified for your specific system.
What is the NSN for 4537B77H05?
4537B77H05 is cataloged in the U.S. Government catalog under NSN 5310-01-616-5769. This indicates validated use in U.S. government and defense supply chains.
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