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Technical Data Sheet
PartsTable / COMPONENT / 8176677
8176677 ✓ Verified by PartsTable
— · NUT WASHER
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY 260 OR COPPER ALLOY 268 OVERALL, thickness: 0.026 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN, hole_diameter: 0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN, overall_diameter: 0.370 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-167-0699, 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
8176677
NSN: 5310-00-167-0699
FSC: 5310
CAGE: 18876 — US ARMY AVIATION AND MISSILE COMMAND (USA)
SPECIFICATIONS
materialCOPPER ALLOY 260 OR COPPER ALLOY 268 OVERALL
thickness0.026 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
hole_diameter0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
overall_diameter0.370 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationQQ-B-613 FED SPEC ALL MATERIAL RESPONSES OVERALL
NSN5310-00-167-0699
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8176677 · 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
•
THICKNESS: 0.026 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
MATERIAL: COPPER ALLOY 260 OR COPPER ALLOY 268 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-613 FED SPEC ALL MATERIAL RESPONSES OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
•
OVERALL DIAMETER: 0.370 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
THICKNESS0.026 INCHES MINIMUM AND 0.038 INCHES MAXIMUM IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
MATERIALCOPPER ALLOY 260 OR COPPER ALLOY 268 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-613 FED SPEC ALL MATERIAL RESPONSES OVERALL
END ITEM IDENTIFICATIONW/S: AIRCRAFT, C-2A (REPROCURED); M1A2 SYSTEM ENHANCEMENT PROG 2350-01-328-5964 (EAA CMBT85SEPT); AIRCRAFT, (AC-130H, MC-130H, EC-130E, HC-130); HELICOPTER, MH-53E; TACTICAL AIR OPNS MODULE (AN/TYQ-(23)); TACTICAL DATA SYSTEM, AN/UYA-4(V); HELICOPTER, ADVANCE ATTACK, AH-1W; TORPEDO, ADCAP 48; M1A2 HEAVY ASSAULT BRIDGE (HAB)/WOLVERINE, 5420-01-430-4247 A
PERIPHERAL SHAPE STYLEROUND
HOLE DIAMETER0.139 INCHES MINIMUM AND 0.159 INCHES MAXIMUM IN
OVERALL DIAMETER0.370 INCHES MINIMUM AND 0.395 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
5310PL0948443Interchangeable
interchangeable cross-reference
interchangeable
P1141Interchangeable
interchangeable cross-reference
interchangeable
C493Interchangeable
interchangeable cross-reference
interchangeable
910255Interchangeable
interchangeable cross-reference
interchangeable
0910255-9Interchangeable
interchangeable cross-reference
interchangeable
028174Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8176677?
8176677 is a WASHER,FLAT.
What parts can replace 8176677?
There are 22 known substitutes for 8176677: 5310PL0948443, P1141, C493 and 19 more. Substitute compatibility should be verified for your specific system.
Is 8176677 still available?
8176677 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026