PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9959-CWasher,flat

Gc/waldom Inc · NSN 5310-01-004-6955 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-004-6955 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-004-6955. Primary manufacturer part number: 9959-C.
Features
  • Washer,flat — FSC 5310
  • Material: PLASTIC POLYAMIDE NYLON OVERALL
  • Hole Diameter: 0.150 INCHES NOMINAL IN
  • Thickness: 0.050 INCHES NOMINAL IN
  • Overall Diameter: 0.312 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Cross-Sectional Shape Style: RECTANGULAR
  • Center Hole Shape Style: ROUND
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Plastic Polyamide Nylon Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-004-6955, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Gc/waldom Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-004-6955
Primary Part Number9959-C
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGc/waldom Inc
StatusACTIVE
MaterialPLASTIC POLYAMIDE NYLON OVERALL
Hole Diameter0.150 INCHES NOMINAL IN
Thickness0.050 INCHES NOMINAL IN
Overall Diameter0.312 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Cross-Sectional Shape StyleRECTANGULAR
Center Hole Shape StyleROUND
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
3020-00-203-1327 INTERCHANGEABLE
Gear,worm
5133-00-203-6472 INTERCHANGEABLE
Drill,twist
4310-01-146-0029 INTERCHANGEABLE
Compressor,rotary
4010-01-616-087250596 INTERCHANGEABLE
Wire Rope Assembly,single Leg
Aerovironment, Inc. Dba Aerovironment Inc
Cross-Reference Index
Part NumberManufacturer
5059-6 Ra-Nav Laboratories Inc (USA)
9959-C PRIMARY Gc/waldom Inc (USA)
Related Parts
3020-00-203-1327INTERCHANGEABLE
GEAR,WORM
5133-00-203-6472INTERCHANGEABLE
DRILL,TWIST
4310-01-146-0029INTERCHANGEABLE
COMPRESSOR,ROTARY
4010-01-616-0872INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
50596

Frequently Asked Questions

What is NSN 5310-01-004-6955?

NSN 5310-01-004-6955 is a Washer,flat, manufactured by Gc/waldom Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-004-6955?

NSN 5310-01-004-6955 has 2 cross-referenced part numbers: 5059-6 (Ra-Nav Laboratories Inc), 9959-C (Gc/waldom Inc).

What NSN replaces 5310-01-004-6955?

There are 4 known substitutes for 5310-01-004-6955: 3020-00-203-1327, 5133-00-203-6472, 4310-01-146-0029 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9959-C?

Key specifications for 9959-C: Material: PLASTIC POLYAMIDE NYLON OVERALL; Hole Diameter: 0.150 INCHES NOMINAL IN; Thickness: 0.050 INCHES NOMINAL IN; Overall Diameter: 0.312 INCHES NOMINAL IN. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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