NSN 5310-00-480-0072 · NIIN 004800072 · Part number 91E3-1A
Howmet Global Fastening Systems Inc Div Camloc Products · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 71286
Government record, cited
NSN 5310-00-480-0072 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-480-0072. Manufacturer of record part number: 91E3-1A.
Manufacturer of record: Howmet Global Fastening Systems Inc Div Camloc Products
Identification
NSN: 5310-00-480-0072
NIIN: 004800072
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 91E3-1A
Manufacturer: Howmet Global Fastening Systems Inc Div Camloc Products
General Description
The Washer,lock, cataloged under National Stock Number 5310-00-480-0072, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Howmet Global Fastening Systems Inc Div Camloc Products. Government technical data includes 5 specifications, cited from the U.S. Government catalog. The record lists 6 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 2 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-00-480-0072
Primary Part Number
91E3-1A
Item Name
Washer,lock
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Howmet Global Fastening Systems Inc Div Camloc Products
Status
ACTIVE
Style Designator
SPLIT HELICAL-RIGHT HAND
Outside Diameter
0.680 INCHES NOMINAL IN
Material Thickness
0.025 INCHES NOMINAL IN
Material
STEEL CORROSION RESISTING OVERALL
Hole Diameter
0.430 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items2
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5310-00-726-22129074145POSSIBLE MATCH
WASHER,LOCK
Possible match (shared part number)Us Army Aviation and Missile Command
5310-00-997-309891S3-1POSSIBLE MATCH
WASHER,SPECIAL
Possible match (shared part number)Bell Textron Inc
Howmet Global Fastening Systems Inc Div Camloc Products (USA)
Related Parts
5310-00-726-2212POSSIBLE MATCH
WASHER,LOCK
9074145
5310-00-997-3098POSSIBLE MATCH
WASHER,SPECIAL
91S3-1
Frequently Asked Questions
What is NSN 5310-00-480-0072?
NSN 5310-00-480-0072 is a Washer,lock, manufactured by Howmet Global Fastening Systems Inc Div Camloc Products, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-00-480-0072?
NSN 5310-00-480-0072 has 6 manufacturer part numbers on file: 91S3-1 (Fairchild Fasteners Europe - Camloc Gmbh), WEA124030 (Qinetiq Ltd), 91297218 (Thales Sa), PDA31826 (Eps Logistics Technology Ltd), X01368 (Mbda Uk Ltd) and 1 more.
What NSN replaces 5310-00-480-0072?
2 possible matches (shared part number, not a government interchangeability claim): 5310-00-726-2212, 5310-00-997-3098. Verify interchangeability with system specifications before substitution.
What are the specifications of 91E3-1A?
Key specifications for 91E3-1A: Style Designator: SPLIT HELICAL-RIGHT HAND; Outside Diameter: 0.680 INCHES NOMINAL IN; Material Thickness: 0.025 INCHES NOMINAL IN; Material: STEEL CORROSION RESISTING OVERALL. 5 specifications are documented in the U.S. Government catalog.
Is NSN 5310-00-480-0072 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.