PartsTable
Technical Data Sheet
Download PDF

1677-04-421-6169 — WASHER,FLAT

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1677-04-421-6169: WASHER,FLAT.

The WASHER,FLAT is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, hole_diameter: 0.312 INCHES NOMINAL IN, special_features: USED ON ALUMINUM DOORS WATERTIGHT QUICK ACTING SUB-ASSEMBLIES AND DETAILS, end_item_identification: DOOR-AL, QAAT RH 26X66, part_name_assigned_by_controlling_agency: FLAT WASHER. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-610-1471, 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
1677-04-421-6169
NSN: 5310-01-610-1471
FSC: 5310 — Nuts and Washers
CAGE: 53711 — NAVAL SEA SYSTEMS COMMAND (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
hole_diameter0.312 INCHES NOMINAL IN
special_featuresUSED ON ALUMINUM DOORS WATERTIGHT QUICK ACTING SUB-ASSEMBLIES AND DETAILS
end_item_identificationDOOR-AL, QAAT RH 26X66
part_name_assigned_by_controlling_agencyFLAT WASHER
NSN5310-01-610-1471
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1677-04-421-6169 · 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
•
MATERIAL: STEEL COMP 316 OVERALL
•
HOLE DIAMETER: 0.312 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SPECIAL FEATURESUSED ON ALUMINUM DOORS WATERTIGHT QUICK ACTING SUB-ASSEMBLIES AND DETAILS
PART NAME ASSIGNED BY CONTROLLING AGENCYFLAT WASHER
END ITEM IDENTIFICATIONDOOR-AL, QAAT RH 26X66
MATERIALSTEEL COMP 316 OVERALL
HOLE DIAMETER0.312 INCHES NOMINAL 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 1
167-7044216 REV A PC NO 169Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 1677-04-421-6169?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 1677-04-421-6169?
1677-04-421-6169 is a WASHER,FLAT.
What parts can replace 1677-04-421-6169?
There is 1 known substitute for 1677-04-421-6169: 167-7044216 REV A PC NO 169. Substitute compatibility should be verified for your specific system.
What is the NSN for 1677-04-421-6169?
1677-04-421-6169 is cataloged in the U.S. Government catalog under NSN 5310-01-610-1471. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 1677-04-421-6169

✓ 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.