NSN 5310-01-508-0126 · NIIN 015080126 · Part number 6391389-1
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 31442
Government record, cited
NSN 5310-01-508-0126 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-508-0126. Manufacturer of record part number: 6391389-1.
Also searched as5310-01-508-0126 ·
5310015080126 ·
NIIN 015080126 ·
01-508-0126 ·
FSC 5310 Nuts and Washers · CAGE 31442 · 6391389-1 · 6391389
Supplementary Features: BOTH TOP AND BOTTOM OUTER EDGES ARE CHAMFERED 0.06 INCH X 45 DEGREES IN
Style Designator: CONCAVE
Outside Diameter: 4.310 INCHES NOMINAL IN
Material Thickness: 0.660 INCHES NOMINAL IN
Material: STEEL COMP A2 OVERALL
Hole Diameter: 3.120 INCHES NOMINAL IN
Identification
NSN: 5310-01-508-0126
NIIN: 015080126
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 6391389-1
Manufacturer: Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
General Description
The Washer,concave, cataloged under National Stock Number 5310-01-508-0126, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp. Government technical data includes 7 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through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog.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
5310-01-508-0126
Primary Part Number
6391389-1
Item Name
Washer,concave
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
Status
ACTIVE
Radius
6.750 INCHES NOMINAL IN
Supplementary Features
BOTH TOP AND BOTTOM OUTER EDGES ARE CHAMFERED 0.06 INCH X 45 DEGREES IN
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp (USA)
Reference documents
Reference
Meaning
6391389
D/9Drawing number reference only
Naval Sea Systems Command
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 5310-01-508-0126?
NSN 5310-01-508-0126 is a Washer,concave, manufactured by Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-508-0126?
NSN 5310-01-508-0126 has 2 manufacturer part numbers on file: 6391389-1 (Naval Sea Systems Command), 6391389-1 (Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp).
What are the specifications of 6391389-1?
Key specifications for 6391389-1: Radius: 6.750 INCHES NOMINAL IN; Supplementary Features: BOTH TOP AND BOTTOM OUTER EDGES ARE CHAMFERED 0.06 INCH X 45 DEGREES IN; Style Designator: CONCAVE; Outside Diameter: 4.310 INCHES NOMINAL IN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-508-0126 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.