NSN 5310-00-371-1602 · NIIN 003711602 · Part number 228503
Lockheed Martin Corporation Div Rms - Mitchel Field · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 56232
Government record, cited
NSN 5310-00-371-1602 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-371-1602. Manufacturer of record part number: 228503.
Also searched as5310-00-371-1602 ·
5310003711602 ·
NIIN 003711602 ·
00-371-1602 ·
FSC 5310 Nuts and Washers · CAGE 56232 · 228503
Material Document and Classification: QQ-B-746 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Outside Diameter: 0.312 INCHES NOMINAL IN
Material Thickness: 0.010 INCHES NOMINAL IN
Hole Diameter: 0.138 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
2 manufacturer part numbers on file
Manufacturer of record: Lockheed Martin Corporation Div Rms - Mitchel Field
Identification
NSN: 5310-00-371-1602
NIIN: 003711602
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 228503
Manufacturer: Lockheed Martin Corporation Div Rms - Mitchel Field
General Description
The Washer,spring Tension, cataloged under National Stock Number 5310-00-371-1602, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation Div Rms - Mitchel Field. Government technical data includes 4 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-00-371-1602
Primary Part Number
228503
Item Name
Washer,spring Tension
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Lockheed Martin Corporation Div Rms - Mitchel Field
Status
ACTIVE
Material Document and Classification
QQ-B-746 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Honeywell International Inc. Dba Honeywell International (USA)
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 5310-00-371-1602?
NSN 5310-00-371-1602 is a Washer,spring Tension, manufactured by Lockheed Martin Corporation Div Rms - Mitchel Field, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-00-371-1602?
NSN 5310-00-371-1602 has 2 manufacturer part numbers on file: 228503 (Lockheed Martin Corporation Div Rms - Mitchel Field), 228503 (Honeywell International Inc. Dba Honeywell International).
What are the specifications of 228503?
Key specifications for 228503: Overall Height: 0.062 INCHES NOMINAL IN; Material Document and Classification: QQ-B-746 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.312 INCHES NOMINAL IN; Material Thickness: 0.010 INCHES NOMINAL IN. 4 specifications are documented in the U.S. Government catalog.
Is NSN 5310-00-371-1602 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.