NSN 5310-00-655-6842 · NIIN 006556842 · Part number 720561-5
Lockheed Martin Corporation Div Rms - Mitchel Field · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 56232
Government record, cited
NSN 5310-00-655-6842 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-655-6842. Manufacturer of record part number: 720561-5.
Also searched as5310-00-655-6842 ·
5310006556842 ·
NIIN 006556842 ·
00-655-6842 ·
FSC 5310 Nuts and Washers · CAGE 56232 · 720561-5
Outside Diameter: 0.275 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN
Material Thickness: 0.016 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN
Color: BLACK OVERALL
Surface Treatment: OXIDE FILM OVERALL
Material: STEEL CORROSION RESISTING OVERALL
Hole Diameter: 0.141 INCHES MINIMUM AND 0.150 INCHES MAXIMUM IN
Identification
NSN: 5310-00-655-6842
NIIN: 006556842
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 720561-5
Manufacturer: Lockheed Martin Corporation Div Rms - Mitchel Field
General Description
The Washer,lock, cataloged under National Stock Number 5310-00-655-6842, 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 7 specifications, cited from the U.S. Government catalog. 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
Parameter
Value
NSN
5310-00-655-6842
Primary Part Number
720561-5
Item Name
Washer,lock
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Lockheed Martin Corporation Div Rms - Mitchel Field
Lockheed Martin Corporation Div Rms - Mitchel Field (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 5310-00-655-6842?
NSN 5310-00-655-6842 is a Washer,lock, 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 5310-00-655-6842?
NSN 5310-00-655-6842 has 1 manufacturer part number on file: 720561-5 (Lockheed Martin Corporation Div Rms - Mitchel Field).
What are the specifications of 720561-5?
Key specifications for 720561-5: Style Designator: FLAT INTERNAL TEETH; Outside Diameter: 0.275 INCHES MINIMUM AND 0.285 INCHES MAXIMUM IN; Material Thickness: 0.016 INCHES MINIMUM AND 0.020 INCHES MAXIMUM IN; Color: BLACK OVERALL. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5310-00-655-6842 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.