The Washer,lock, cataloged under National Stock Number 5310-00-537-8380, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 3 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government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
5310-00-537-8380
Item Name
Washer,lock
FSC / FSG
5310 / 53 — Nuts and Washers
Status
ACTIVE
Surface Treatment
PASSIVATE OVERALL
Material
STEEL CORROSION RESISTING OVERALL
Hole Diameter
0.328 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 Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5930-00-740-7052436-745POSSIBLE MATCH
SWITCH,THERMOSTATIC
Possible match (shared part number)Ametek, Inc. Dba Aerospace Gst Div Aerospace
4720-00-764-6736242200-4-0504POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division
5977-00-910-459110419POSSIBLE MATCH
BRUSH,ELECTRICAL CONTACT
Possible match (shared part number)Miraj Corp
6650-01-041-347910419POSSIBLE MATCH
REFRACTOMETER
Possible match (shared part number)American Optical Co
2590-01-140-820812315536POSSIBLE MATCH
COVER,GLADHAND
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
4820-01-189-4692POSSIBLE MATCH
BALL,CHECK
Possible match (shared part number)
5975-01-372-237810419POSSIBLE MATCH
MOUNTING BASE,ELECTRICAL EQUIPME
Possible match (shared part number)Hollingsead International, Llc
4310-01-462-1972DD-20POSSIBLE MATCH
VACUUM PUMP,ROTARY
Possible match (shared part number)Precision Scientific Petroleum Instruments Co
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
10419
3/9Design control — primary reference
U.S. Government activity
Related Parts
5930-00-740-7052POSSIBLE MATCH
SWITCH,THERMOSTATIC
436-745
4720-00-764-6736POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
242200-4-0504
5977-00-910-4591POSSIBLE MATCH
BRUSH,ELECTRICAL CONTACT
10419
6650-01-041-3479POSSIBLE MATCH
REFRACTOMETER
10419
2590-01-140-8208POSSIBLE MATCH
COVER,GLADHAND
12315536
4820-01-189-4692POSSIBLE MATCH
BALL,CHECK
5975-01-372-2378POSSIBLE MATCH
MOUNTING BASE,ELECTRICAL EQUIPME
10419
4310-01-462-1972POSSIBLE MATCH
VACUUM PUMP,ROTARY
DD-20
Frequently Asked Questions
What is NSN 5310-00-537-8380?
NSN 5310-00-537-8380 is a Washer,lock, classified under FSC 5310, Nuts and Washers. Status: active.
What NSN replaces 5310-00-537-8380?
8 possible matches (shared part number, not a government interchangeability claim): 5930-00-740-7052, 4720-00-764-6736, 5977-00-910-4591. Verify interchangeability with system specifications before substitution.
What are the specifications of 5310-00-537-8380?
Key specifications for 5310-00-537-8380: Surface Treatment: PASSIVATE OVERALL; Material: STEEL CORROSION RESISTING OVERALL; Hole Diameter: 0.328 INCHES NOMINAL IN. 3 specifications are documented in the U.S. Government catalog.
Is NSN 5310-00-537-8380 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.