PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21C116-06Washer,lock

Nextiraone Solutions Llc · NSN 5310-01-145-4564 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-145-4564 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-145-4564. Primary manufacturer part number: 21C116-06.
Features
  • Washer,lock — FSC 5310
  • Material Thickness: 0.017 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
  • Surface Treatment Document and Classification: QQ-P-35,TY 2 OR TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Outside Diameter: 0.275 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN
  • Material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 OR STEEL COMP 303SE OVERALL
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OVERALL
  • Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
  • Hole Diameter: 0.141 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 301 or Steel Comp 302 or Steel Comp 302b or Steel Comp 303 or Steel Comp 304 or Steel Comp 304l or Steel Comp 305 or Steel Comp 308 or Steel Comp 309 or Steel Comp 309s or Steel Comp 310 or Steel Comp 310s or Steel Comp 314 or Steel Comp 316 or Steel Comp 316l or Steel Comp 317 or Steel Comp 321 or Steel Comp 347 or Steel Comp 348 or Steel Comp 384 or Steel Comp 385 or Steel Comp 303SE Overall construction
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-145-4564, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Nextiraone Solutions Llc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-145-4564
Primary Part Number21C116-06
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNextiraone Solutions Llc
StatusACTIVE
Material Thickness0.017 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
Surface Treatment Document and ClassificationQQ-P-35,TY 2 OR TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
Outside Diameter0.275 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN
MaterialSTEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 OR STEEL COMP 303SE OVERALL
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OVERALL
Hardness Rating35.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM
Hole Diameter0.141 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
Style DesignatorFLAT INTERNAL TEETH
Nondefinitive Spec/std Data1 TYPE AND A GRADE AND 1 STYLE
Surface TreatmentPASSIVATE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
5310-00-011-5548115548 INTERCHANGEABLE
Washer,lock
General Motors Corp
5310-00-543-2739MS35333-72 INTERCHANGEABLE
Washer,lock
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
5310PL2178687 Jednolity Indeks Materialowy - Uniform Material Index (POL)
NASM35333 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
21C116-06 PRIMARY Nextiraone Solutions Llc (USA)
MS35333-154 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
5310011454564 E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales
MS35333-154 PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
FF-W-100 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
5310-00-011-5548INTERCHANGEABLE
WASHER,LOCK
115548
5310-00-543-2739INTERCHANGEABLE
WASHER,LOCK
MS35333-72

Frequently Asked Questions

What is NSN 5310-01-145-4564?

NSN 5310-01-145-4564 is a Washer,lock, manufactured by Nextiraone Solutions Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-145-4564?

NSN 5310-01-145-4564 has 7 cross-referenced part numbers: 5310PL2178687 (Jednolity Indeks Materialowy - Uniform Material Index), NASM35333 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 21C116-06 (Nextiraone Solutions Llc), MS35333-154 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M), 5310011454564 (E.c.a Etablissement Central Des Approvisionnements Des Forces Armees Royales) and 2 more.

What NSN replaces 5310-01-145-4564?

There are 2 known substitutes for 5310-01-145-4564: 5310-00-011-5548, 5310-00-543-2739. Verify interchangeability with system specifications before substitution.

What are the specifications of 21C116-06?

Key specifications for 21C116-06: Material Thickness: 0.017 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN; Surface Treatment Document and Classification: QQ-P-35,TY 2 OR TY 3 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Outside Diameter: 0.275 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN; Material: STEEL COMP 301 OR STEEL COMP 302 OR STEEL COMP 302B OR STEEL COMP 303 OR STEEL COMP 304 OR STEEL COMP 304L OR STEEL COMP 305 OR STEEL COMP 308 OR STEEL COMP 309 OR STEEL COMP 309S OR STEEL COMP 310 OR STEEL COMP 310S OR STEEL COMP 314 OR STEEL COMP 316 OR STEEL COMP 316L OR STEEL COMP 317 OR STEEL COMP 321 OR STEEL COMP 347 OR STEEL COMP 348 OR STEEL COMP 384 OR STEEL COMP 385 OR STEEL COMP 303SE OVERALL. 10 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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