Locking Feature: PREVAILING TORQUE WITH NONMETALLIC INSERT
Nut Height: 0.869 INCHES NOMINAL IN
Nut Style: CASTELLATED, HEXAGON
Identification
NSN: 5310-00-770-1337
NIIN: 007701337
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
General Description
The Nut,self-Locking,castellated,hex, cataloged under National Stock Number 5310-00-770-1337, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 10 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-00-770-1337
Item Name
Nut,self-Locking,castellated,hex
FSC / FSG
5310 / 53 — Nuts and Washers
Status
ACTIVE
Width Across Flats
1.615 INCHES NOMINAL IN
Thread Series
UNS
Thread Direction
RIGHT-HAND
Nominal Thread Size
1.000 INCHES IN
Locking Feature
PREVAILING TORQUE WITH NONMETALLIC INSERT
Nut Height
0.869 INCHES NOMINAL IN
Nut Style
CASTELLATED, HEXAGON
Thread Class
3B
Thread Quantity Per Inch
14
Material
STEEL OVERALL
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
⇄Related Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5935-01-147-23463818POSSIBLE MATCH
SOCKET,PLUG-IN ELECTRONIC COMPON
Possible match (shared part number)Armel De Llc Dba Armel Electronics
4720-01-325-6369381-8POSSIBLE MATCH
HOSE,NONMETALLIC
Possible match (shared part number)Parker Hannifin Corp Dba Pneutronics Div Stratoflex Products Division
3439-01-412-84853818POSSIBLE MATCH
ELECTRODE,CUTTING,TUBULAR
Possible match (shared part number)Broco Inc
5999-01-517-54263818POSSIBLE MATCH
RELAY-SWITCH
Possible match (shared part number)Gta Marine Dba Gta Marine
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
3818
3/9Design control — primary reference
U.S. Government activity
Related Parts
5935-01-147-2346POSSIBLE MATCH
SOCKET,PLUG-IN ELECTRONIC COMPON
3818
4720-01-325-6369POSSIBLE MATCH
HOSE,NONMETALLIC
381-8
3439-01-412-8485POSSIBLE MATCH
ELECTRODE,CUTTING,TUBULAR
3818
5999-01-517-5426POSSIBLE MATCH
RELAY-SWITCH
3818
Frequently Asked Questions
What is NSN 5310-00-770-1337?
NSN 5310-00-770-1337 is a Nut,self-Locking,castellated,hex, classified under FSC 5310, Nuts and Washers. Status: active.
What NSN replaces 5310-00-770-1337?
4 possible matches (shared part number, not a government interchangeability claim): 5935-01-147-2346, 4720-01-325-6369, 3439-01-412-8485. Verify interchangeability with system specifications before substitution.
What are the specifications of 5310-00-770-1337?
Key specifications for 5310-00-770-1337: Width Across Flats: 1.615 INCHES NOMINAL IN; Thread Series: UNS; Thread Direction: RIGHT-HAND; Nominal Thread Size: 1.000 INCHES IN. 10 specifications are documented in the U.S. Government catalog.
Is NSN 5310-00-770-1337 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.