PartsTable TECHNICAL DATA SHEET
NSN 5310-01-566-5186Government record, cited

Washer, Flat5310-01-566-5186

NSN 5310-01-566-5186 · NIIN 015665186 · Part number RP741-1
Lockheed Martin Corporation · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 0L1E5
Government record, cited
NSN 5310-01-566-5186 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-566-5186. Manufacturer of record part number: RP741-1.
Also searched as  5310-01-566-5186 · 5310015665186 · NIIN 015665186 · 01-566-5186 · FSC 5310 Nuts and Washers · CAGE 0L1E5 · RP741-1
Nearby stock numbers  ·
Features
  • Washer,flat — FSC 5310
  • 1 manufacturer part number on file
  • Manufacturer of record: Lockheed Martin Corporation
Identification
  • NSN: 5310-01-566-5186
  • NIIN: 015665186
  • FSC: 5310 — Nuts and Washers
  • FSG: 53 — Hardware and Abrasives
  • Primary part number: RP741-1
  • Manufacturer: Lockheed Martin Corporation
General Description

The Washer,flat, cataloged under National Stock Number 5310-01-566-5186, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Lockheed Martin Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-566-5186
Primary Part NumberRP741-1
Item NameWasher,flat
FSC / FSG5310 / 53 — Nuts and Washers
ManufacturerLockheed Martin Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardNo hazard code in the DLA record (HMIC N)
Criticality CodeX
Cross-Reference Index
Part NumberManufacturer
RP741-1 PRIMARY Lockheed Martin Corporation (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 5310-01-566-5186?

NSN 5310-01-566-5186 is a Washer,flat, manufactured by Lockheed Martin Corporation, classified under FSC 5310, Nuts and Washers. Status: active.

What part numbers are listed for NSN 5310-01-566-5186?

NSN 5310-01-566-5186 has 1 manufacturer part number on file: RP741-1 (Lockheed Martin Corporation).

What are the specifications of RP741-1?

Key specifications for RP741-1: Part Name Assigned by Controlling Agency: WASHER,FLAT; End Item Identification: U-2. 0 specifications are documented in the U.S. Government catalog.

Is NSN 5310-01-566-5186 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.
PartsTable Design LLC · partstable.com