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PartsTable / COMPONENT / 0770-8
0770-8 ✓ 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 color: CLEAR, face_width: 6.00 INCHES NOMINAL IN, overall_height: 9.0 INCHES NOMINAL IN, opening_location: TOP, special_features: MAATERIAL:3MM POLYETHYLENE MM, style_designator: FLAT. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-880-5978, 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
0770-8
NSN: 5310-00-880-5978
FSC: 5310
CAGE: 07187 — HONEYWELL INTERNATIONAL INC. DBA HONEYWELL INTERNATIONAL (USA)
SPECIFICATIONS
colorCLEAR
face_width6.00 INCHES NOMINAL IN
overall_height9.0 INCHES NOMINAL IN
opening_locationTOP
special_featuresMAATERIAL:3MM POLYETHYLENE MM
style_designatorFLAT
perforation_featureNOT INCLUDED
material_transparencyCLEAR
closure_fastening_typeADHESIVE
part_name_assigned_by_controlling_agencySTRIP-N-GRIP NUMBERED EVIDENCE POUCH
NSN5310-00-880-5978
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 0770-8 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 29
45338100020Interchangeable
interchangeable cross-reference
interchangeable
S318-500Interchangeable
interchangeable cross-reference
interchangeable
2255Interchangeable
interchangeable cross-reference
interchangeable
O-C-265Interchangeable
interchangeable cross-reference
interchangeable
FFW92Interchangeable
interchangeable cross-reference
interchangeable
280457PC6Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 0770-8?
0770-8 is a WASHER,FLAT.
What parts can replace 0770-8?
There are 29 known substitutes for 0770-8: 45338100020, S318-500, 2255 and 26 more. Substitute compatibility should be verified for your specific system.
Is 0770-8 still available?
0770-8 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