PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10552671Washer,flat

Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate · NSN 5310-00-120-0439 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-120-0439 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-120-0439. Primary manufacturer part number: 10552671.
Features
  • Washer,flat — FSC 5310
  • Hole Diameter: 0.253 INCHES NOMINAL IN
  • Material: STEEL OVERALL
  • Thickness: 0.020 INCHES NOMINAL IN
  • Peripheral Shape Style: ROUND
  • Center Hole Shape Style: ROUND
  • Overall Diameter: 0.373 INCHES NOMINAL IN
  • Cross-Sectional Shape Style: RECTANGULAR
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Washer,flat, cataloged under National Stock Number 5310-00-120-0439, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate. 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-120-0439
Primary Part Number10552671
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCombat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate
StatusACTIVE
Hole Diameter0.253 INCHES NOMINAL IN
MaterialSTEEL OVERALL
Thickness0.020 INCHES NOMINAL IN
Peripheral Shape StyleROUND
Center Hole Shape StyleROUND
Overall Diameter0.373 INCHES NOMINAL IN
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
6810-00-065-3140 INTERCHANGEABLE
Barium Chloride,anhydrous
5330-00-154-4027246-44PC14 INTERCHANGEABLE
Seal,plain Encased
Insinger Machine Co
3455-00-250-0789 INTERCHANGEABLE
Cutter,milling,end
4910-00-256-8831 INTERCHANGEABLE
Lathe,brake Drum
3030-00-529-0495 INTERCHANGEABLE
Belt,v
2240-00-785-3674 INTERCHANGEABLE
Head,brake
2530-00-972-8424592214 INTERCHANGEABLE
Cylinder Assembly,actuating,line
Brp Us Inc
5365-01-105-3967B3-5 INTERCHANGEABLE
Shim
Roller Bearing Co of America, Inc Div Pic Design
7690-01-172-3161CU-LB35R INTERCHANGEABLE
Marker,identification
American Labelmark Company Div Labelmaster
6910-01-189-2278B435 INTERCHANGEABLE
Adiantum Rhizome
Carolina Biological Supply Co
Cross-Reference Index
Part NumberManufacturer
10552671 PRIMARY Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
B3-5 Unitron Inc (USA)
Related Parts
6810-00-065-3140INTERCHANGEABLE
BARIUM CHLORIDE,ANHYDROUS
5330-00-154-4027INTERCHANGEABLE
SEAL,PLAIN ENCASED
246-44PC14
3455-00-250-0789INTERCHANGEABLE
CUTTER,MILLING,END
4910-00-256-8831INTERCHANGEABLE
LATHE,BRAKE DRUM
3030-00-529-0495INTERCHANGEABLE
BELT,V
2240-00-785-3674INTERCHANGEABLE
HEAD,BRAKE
2530-00-972-8424INTERCHANGEABLE
CYLINDER ASSEMBLY,ACTUATING,LINE
592214
5365-01-105-3967INTERCHANGEABLE
SHIM
B3-5
7690-01-172-3161INTERCHANGEABLE
MARKER,IDENTIFICATION
CU-LB35R
6910-01-189-2278INTERCHANGEABLE
ADIANTUM RHIZOME
B435
5330-01-191-4536INTERCHANGEABLE
SEAL,PLAIN
B-35
2940-01-194-9730INTERCHANGEABLE
FILTER ELEMENT,FLUID
PH3535

Frequently Asked Questions

What is NSN 5310-00-120-0439?

NSN 5310-00-120-0439 is a Washer,flat, manufactured by Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-120-0439?

NSN 5310-00-120-0439 has 2 cross-referenced part numbers: 10552671 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), B3-5 (Unitron Inc).

What NSN replaces 5310-00-120-0439?

There are 12 known substitutes for 5310-00-120-0439: 6810-00-065-3140, 5330-00-154-4027, 3455-00-250-0789 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10552671?

Key specifications for 10552671: Hole Diameter: 0.253 INCHES NOMINAL IN; Material: STEEL OVERALL; Thickness: 0.020 INCHES NOMINAL IN; End Item Identification: COMPUTER GUN DIRECTION,M18. 8 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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