PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

212-8463996ITEM38Washer,flat

Huntington Ingalls Inc Div Newport News Shipbuilding · NSN 5310-01-676-4951 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-676-4951 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-676-4951. Primary manufacturer part number: 212-8463996ITEM38.
Features
  • Washer,flat — FSC 5310
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
  • Criticality Code Justification: ZZZY
  • 3 verified cross-references
  • Primary manufacturer: Huntington Ingalls Inc Div Newport News Shipbuilding
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-676-4951, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Huntington Ingalls Inc Div Newport News Shipbuilding. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN5310-01-676-4951
Primary Part Number212-8463996ITEM38
Item NameWasher,flat
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHuntington Ingalls Inc Div Newport News Shipbuilding
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5133-00-061-628644479 INTERCHANGEABLE
Drill,twist
Greenfield Industries Inc
5950-00-116-3616TW62511 INTERCHANGEABLE
Reactor
Magnetika
5930-00-548-4658 INTERCHANGEABLE
Switch,rotary
4320-00-586-27482006-9V-DNI INTERCHANGEABLE
Seal Assembly,shaft,spring Loade
R.s. Corcoran Co.
4520-00-854-4208 INTERCHANGEABLE
Vaporizer Burner
4810-00-942-837420069 INTERCHANGEABLE
Seat,valve
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5310-01-109-0307 INTERCHANGEABLE
Nut,bushing
4920-01-297-971620069 INTERCHANGEABLE
Test Program Set
Textron Systems Corporation Dba Textron Systems Corp
5340-01-318-383720069 INTERCHANGEABLE
Strap,retaining
C-Way Industries Inc
5310-01-344-6749 INTERCHANGEABLE
Washer,flat
Cross-Reference Index
Part NumberManufacturer
212-8463996ITEM38 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
A4W RPPY SK-682 Huntington Ingalls Inc Div Newport News Shipbuilding (USA)
20069 Mcnally Industries, Llc (USA)
Related Parts
5133-00-061-6286INTERCHANGEABLE
DRILL,TWIST
44479
5950-00-116-3616INTERCHANGEABLE
REACTOR
TW62511
5930-00-548-4658INTERCHANGEABLE
SWITCH,ROTARY
4320-00-586-2748INTERCHANGEABLE
SEAL ASSEMBLY,SHAFT,SPRING LOADE
2006-9V-DNI
4520-00-854-4208INTERCHANGEABLE
VAPORIZER BURNER
4810-00-942-8374INTERCHANGEABLE
SEAT,VALVE
20069
5310-01-109-0307INTERCHANGEABLE
NUT,BUSHING
4920-01-297-9716INTERCHANGEABLE
TEST PROGRAM SET
20069
5340-01-318-3837INTERCHANGEABLE
STRAP,RETAINING
20069
5310-01-344-6749INTERCHANGEABLE
WASHER,FLAT
4820-01-465-2502INTERCHANGEABLE
VALVE,VENT
4730-01-483-2143INTERCHANGEABLE
ELBOW,PIPE TO TUBE

Frequently Asked Questions

What is NSN 5310-01-676-4951?

NSN 5310-01-676-4951 is a Washer,flat, manufactured by Huntington Ingalls Inc Div Newport News Shipbuilding, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-676-4951?

NSN 5310-01-676-4951 has 3 cross-referenced part numbers: 212-8463996ITEM38 (Huntington Ingalls Inc Div Newport News Shipbuilding), A4W RPPY SK-682 (Huntington Ingalls Inc Div Newport News Shipbuilding), 20069 (Mcnally Industries, Llc).

What NSN replaces 5310-01-676-4951?

There are 12 known substitutes for 5310-01-676-4951: 5133-00-061-6286, 5950-00-116-3616, 5930-00-548-4658 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 212-8463996ITEM38?

Key specifications for 212-8463996ITEM38: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH NAVSUP-WSS ACTIVITY HX QUALITY CONTROL, MANUFACTURING AND TESTING SPECIFICATIONS; Criticality Code Justification: ZZZY. 2 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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