Material Document and Classification: ASTM A304 ASSN STD ALL MATERIAL RESPONSES OVERALL
Cross-Sectional Shape Style: RECTANGULAR
Peripheral Shape Style: ROUND
Material: STEEL COMP 50B60H OR STEEL COMP 51B60H OR STEEL COMP 81B45H OR STEEL COMP 1038H OR STEEL COMP 1045H OR STEEL COMP 1330H OR STEEL COMP 1335H OR STEEL COMP 1340H OR STEEL COMP 1345H OR STEEL COMP 4027H OR STEEL COMP 4032H OR STEEL COMP 4037H OR STEEL COMP 4042H OR STEEL COMP 4047H OR STEEL COMP 4130H OR STEEL COMP 4135H OR STEEL COMP 4137H OR STEEL COMP 4140H OR STEEL COMP 4142H OR STEEL COMP 4145H OR STEEL COMP 4147H OR STEEL COMP 4150H OR STEEL COMP 4320H OR STEEL COMP 4340H OR STEEL COMP 4620H OR STEEL COMP 4621H OR STEEL COMP 4815H OR STEEL COMP 4820H OR STEEL COMP 5120H OR STEEL COMP 5130H OR STEEL COMP 5132H OR STEEL COMP 5135H OR STEEL COMP 5140H OR STEEL COMP 5145H OR STEEL COMP 5147H OR STEEL COMP 5160H OR STEEL COMP 6150H OR STEEL COMP 8617H OR STEEL COMP 8620H OR STEEL COMP 8622H OR STEEL COMP 8630H OR STEEL COMP 8640H OR STEEL COMP 8642H OR STEEL COMP 8645H OR STEEL COMP 8650H OR STEEL COMP 8655H OR STEEL COMP 8660H OR STEEL COMP 8720H OR STEEL COMP 8740H OR STEEL COMP 9310H OVERALL
Center Hole Shape Style: ROUND
Hole Diameter: 0.796 INCHES NOMINAL IN
Identification
NSN: 5310-01-294-0255
NIIN: 012940255
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
General Description
The Washer,flat, cataloged under National Stock Number 5310-01-294-0255, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 8 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-01-294-0255
Item Name
Washer,flat
FSC / FSG
5310 / 53 — Nuts and Washers
Status
ACTIVE
Overall Diameter
1.688 INCHES NOMINAL IN
Material Document and Classification
ASTM A304 ASSN STD ALL MATERIAL RESPONSES OVERALL
Cross-Sectional Shape Style
RECTANGULAR
Peripheral Shape Style
ROUND
Material
STEEL COMP 50B60H OR STEEL COMP 51B60H OR STEEL COMP 81B45H OR STEEL COMP 1038H OR STEEL COMP 1045H OR STEEL COMP 1330H OR STEEL COMP 1335H OR STEEL COMP 1340H OR STEEL COMP 1345H OR STEEL COMP 4027H OR STEEL COMP 4032H OR STEEL COMP 4037H OR STEEL COMP 4042H OR STEEL COMP 4047H OR STEEL COMP 4130H OR STEEL COMP 4135H OR STEEL COMP 4137H OR STEEL COMP 4140H OR STEEL COMP 4142H OR STEEL COMP 4145H OR STEEL COMP 4147H OR STEEL COMP 4150H OR STEEL COMP 4320H OR STEEL COMP 4340H OR STEEL COMP 4620H OR STEEL COMP 4621H OR STEEL COMP 4815H OR STEEL COMP 4820H OR STEEL COMP 5120H OR STEEL COMP 5130H OR STEEL COMP 5132H OR STEEL COMP 5135H OR STEEL COMP 5140H OR STEEL COMP 5145H OR STEEL COMP 5147H OR STEEL COMP 5160H OR STEEL COMP 6150H OR STEEL COMP 8617H OR STEEL COMP 8620H OR STEEL COMP 8622H OR STEEL COMP 8630H OR STEEL COMP 8640H OR STEEL COMP 8642H OR STEEL COMP 8645H OR STEEL COMP 8650H OR STEEL COMP 8655H OR STEEL COMP 8660H OR STEEL COMP 8720H OR STEEL COMP 8740H OR STEEL COMP 9310H OVERALL
Center Hole Shape Style
ROUND
Hole Diameter
0.796 INCHES NOMINAL IN
Thickness
0.063 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
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
122-2255891 PC 8
3/2Design control — primary reference
U.S. Government activity
No interchangeability data on file.
Other items in FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040
5310-00-000-0040 · Item name not on file
5310-00-000-0077
NUT,PLAIN,ROUND
5310-00-000-0079
WASHER,FLAT
5310-00-000-0079
WASHER,FLAT
5310-00-000-1146
5310-00-000-1146 · Item name not on file
5310-00-000-3815
5310-00-000-3815 · Item name not on file
5310-00-000-4532
5310-00-000-4532 · Item name not on file
5310-00-000-4540
5310-00-000-4540 · Item name not on file
Frequently Asked Questions
What is NSN 5310-01-294-0255?
NSN 5310-01-294-0255 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
What are the specifications of 5310-01-294-0255?
Key specifications for 5310-01-294-0255: Overall Diameter: 1.688 INCHES NOMINAL IN; Material Document and Classification: ASTM A304 ASSN STD ALL MATERIAL RESPONSES OVERALL; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND. 8 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-294-0255 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.