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Technical Data Sheet
77C956295P1 ✓ 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: RUBBER CHLOROPRENE CLASS CR OVERALL, thickness: 0.031 INCHES NOMINAL IN, hole_diameter: 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN, overall_diameter: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN, peripheral_shape_style: ROUND, center_hole_shape_style: ROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-413-1706, 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
77C956295P1
NSN: 5310-01-413-1706
FSC: 5310
CAGE: 03538 — LOCKHEED MARTIN CORPORATION DIV RMS (USA)
SPECIFICATIONS
materialRUBBER CHLOROPRENE CLASS CR OVERALL
thickness0.031 INCHES NOMINAL IN
hole_diameter0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
overall_diameter0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
peripheral_shape_styleROUND
center_hole_shape_styleROUND
cross-sectional_shape_styleRECTANGULAR
material_document_and_classificationMIL-R-6855 CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyNAVY SPECIAL PROJECT
NSN5310-01-413-1706
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 77C956295P1 · 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: RUBBER CHLOROPRENE CLASS CR OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-6855 CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
OVERALL DIAMETER: 0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLE: ROUND
HOLE DIAMETER: 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLE: ROUND
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALRUBBER CHLOROPRENE CLASS CR OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-6855 CLASS 2 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
OVERALL DIAMETER0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM IN
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.031 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
35D41918Interchangeable
interchangeable cross-reference
interchangeable
M391Interchangeable
interchangeable cross-reference
interchangeable
391Interchangeable
interchangeable cross-reference
interchangeable
000216VInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 77C956295P1?
77C956295P1 is a WASHER,FLAT.
What parts can replace 77C956295P1?
There are 4 known substitutes for 77C956295P1: 35D41918, M391, 391 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 77C956295P1?
77C956295P1 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-413-1706. This indicates validated use in U.S. government and defense supply chains.
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