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1677-10-678-7140 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1677-10-678-7140: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include criticality_code_justification: ZZZY. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-641-2878, 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
1677-10-678-7140
NSN: 5310-01-641-2878
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
criticality_code_justificationZZZY
NSN5310-01-641-2878
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1677-10-678-7140 · 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
•
CRITICALITY CODE JUSTIFICATION: ZZZY
•
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICS: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PRODURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONZZZY
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSMATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PRODURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAFETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES
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 7
7383858-H5470249-0140Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
167-7106787-140D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
7383858-H5470249-0140D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
H547-0001-H5470249-0140D4Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
H547-0249-140Reference document
Same NSN cross-reference
Reference document — Secondary reference
H547-0001-H5470249-0140Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 1677-10-678-7140?
1677-10-678-7140 is a WASHER,FLAT.
What parts can replace 1677-10-678-7140?
There are 7 known substitutes for 1677-10-678-7140: 7383858-H5470249-0140, 167-7106787-140D4, 7383858-H5470249-0140D4 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1677-10-678-7140?
1677-10-678-7140 is cataloged in the U.S. Government catalog under NSN 5310-01-641-2878. This indicates validated use in U.S. government and defense supply chains.
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