PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N405P11CWasher,lock

General Electric Company · NSN 5310-00-012-1637 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-012-1637 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-012-1637. Primary manufacturer part number: N405P11C.
Features
  • Washer,lock — FSC 5310
  • Hole Diameter: 0.255 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
  • Material Thickness: 0.047 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
  • Nondefinitive Spec/std Data: 1 STYLE AND A CLASS
  • Surface Treatment Document and Classification: QQ-P-416 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 FED SPEC 2ND TREATMENT RESPONSE OVERALL
  • Surface Treatment: CADMIUM OR ZINC OVERALL
  • Material Document and Classification: 66 FED STD ALL MATERIAL RESPONSES OR AISI NATIONAL SPEC ALL MATERIAL RESPONSES OR SAE NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
  • Hardness Rating: 45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,lock, cataloged under National Stock Number 5310-00-012-1637, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is General Electric Company. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 26 commercial cross-references from 20 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-012-1637
Primary Part NumberN405P11C
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerGeneral Electric Company
StatusCANCELLED
Hole Diameter0.255 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN
Material Thickness0.047 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
Nondefinitive Spec/std Data1 STYLE AND A CLASS
Surface Treatment Document and ClassificationQQ-P-416 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 FED SPEC 2ND TREATMENT RESPONSE OVERALL
Surface TreatmentCADMIUM OR ZINC OVERALL
Material Document and Classification66 FED STD ALL MATERIAL RESPONSES OR AISI NATIONAL SPEC ALL MATERIAL RESPONSES OR SAE NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
Hardness Rating45.0 ROCKWELL C MINIMUM AND 53.0 ROCKWELL C MAXIMUM
Outside Diameter0.489 INCHES MAXIMUM IN
Style DesignatorSPLIT HELICAL-RIGHT HAND
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
2815-00-481-9408 INTERCHANGEABLE
Engine,diesel
5310-00-582-5965196 INTERCHANGEABLE
Washer,lock
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
5325-00-607-75818158030 INTERCHANGEABLE
Grommet,nonmetallic
Us Army Aviation and Missile Command
4930-00-949-9657 INTERCHANGEABLE
Nozzle,fuel and Oil Servicing
5310-01-096-6181 INTERCHANGEABLE
Washer,flat
5980-01-380-1930A2500 INTERCHANGEABLE
Semiconductor Device Assembly
Technical Services Laboratory, Inc. Dba Technical Services Laboratory Inc
6810-01-644-5100A-2500 INTERCHANGEABLE
Potassium Iodide Solution,alkali
Aquaphoenix Scientific, Llc
Cross-Reference Index
Part NumberManufacturer
N405P11C General Electric Company (USA)
5310PL0628194 Jednolity Indeks Materialowy - Uniform Material Index (POL)
25704-281210-45-0 Knds Deutschland Gmbh & Co. Kg - Werk Kassel - (DEU)
121637 Diamond Reo Truck Co (USA)
26410025 Caterpillar Commercial Services (FRA)
MS35337-25 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS35337-25 Feinmechanische Werke Mainz Gmbh (DEU)
MS35338-25 Liebherr-Aerospace Lindenberg Gmbh (DEU)
MPR9576-19BLH15 Met-Pro Corporation (USA)
356263S7 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
5118-73-4 Aesys Technologies, L.l.c. Dba Jackson & Church Hvac Global Div York Shipley Global (USA)
FFW84 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
MPR9576-19BRH15 Met-Pro Corporation (USA)
MS35338-25 Feinmechanische Werke Mainz Gmbh (DEU)
121637 Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
A2500 Paccar Winch Inc Dba Paccar Winch Division (USA)
34825S8 Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
25704-281220-11-0 Knds Deutschland Gmbh & Co. Kg - Werk Kassel - (DEU)
25704-281210-45-0 Baainbw Dokumente Ohne Nutzungsrechte Des Baainbw Fur Beschaffungszwecke (DEU)
XX002-0681 Rdm Technology B.v. (NLD)
Related Parts
2815-00-481-9408INTERCHANGEABLE
ENGINE,DIESEL
5310-00-582-5965INTERCHANGEABLE
WASHER,LOCK
196
5325-00-607-7581INTERCHANGEABLE
GROMMET,NONMETALLIC
8158030
4930-00-949-9657INTERCHANGEABLE
NOZZLE,FUEL AND OIL SERVICING
5310-01-096-6181INTERCHANGEABLE
WASHER,FLAT
5980-01-380-1930INTERCHANGEABLE
SEMICONDUCTOR DEVICE ASSEMBLY
A2500
6810-01-644-5100INTERCHANGEABLE
POTASSIUM IODIDE SOLUTION,ALKALI
A-2500

Frequently Asked Questions

What is NSN 5310-00-012-1637?

NSN 5310-00-012-1637 is a Washer,lock, manufactured by General Electric Company, classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-012-1637?

NSN 5310-00-012-1637 has 26 cross-referenced part numbers: N405P11C (General Electric Company), 5310PL0628194 (Jednolity Indeks Materialowy - Uniform Material Index), 25704-281210-45-0 (Knds Deutschland Gmbh & Co. Kg - Werk Kassel -), 121637 (Diamond Reo Truck Co), 26410025 (Caterpillar Commercial Services) and 21 more.

What NSN replaces 5310-00-012-1637?

There are 7 known substitutes for 5310-00-012-1637: 2815-00-481-9408, 5310-00-582-5965, 5325-00-607-7581 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N405P11C?

Key specifications for N405P11C: Hole Diameter: 0.255 INCHES MINIMUM AND 0.267 INCHES MAXIMUM IN; Material Thickness: 0.047 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN; Nondefinitive Spec/std Data: 1 STYLE AND A CLASS; Surface Treatment Document and Classification: QQ-P-416 FED SPEC 1ST TREATMENT RESPONSE OR QQ-Z-325 FED SPEC 2ND TREATMENT RESPONSE OVERALL. 9 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-012-1637 still in active supply?

NSN 5310-00-012-1637 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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