PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

K3031-3Nut,self-Locking,plate

Howmet Global Fastening Systems Inc · NSN 5310-01-399-3127 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-399-3127 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-399-3127. Primary manufacturer part number: K3031-3.
Features
  • Nut,self-Locking,plate — FSC 5310
  • 7 verified cross-references
  • Primary manufacturer: Howmet Global Fastening Systems Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,self-Locking,plate, cataloged under National Stock Number 5310-01-399-3127, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Howmet Global Fastening Systems Inc. This item has 7 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameNut,self-Locking,plate
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersRtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445); Sps Technologies, Llc Dba PB Fasteners (CAGE 56878); Harvard Industries Inc (CAGE 72962); Howmet Global Fastening Systems Inc (CAGE 15653)
Technical Specifications
ParameterValue
NSN5310-01-399-3127
Primary Part NumberK3031-3
Item NameNut,self-Locking,plate
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHowmet Global Fastening Systems Inc
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5310-00-680-6840K3031-3 INTERCHANGEABLE
Nut,self-Locking,plate
Howmet Global Fastening Systems Inc
5330-01-233-9038775627 INTERCHANGEABLE
Parts Kit,seal Replacement,mecha
Caterpillar Inc Div Caterpillar Defense
5961-01-303-5993707836 INTERCHANGEABLE
Semiconductor Device,diode
Fluke Corp
Cross-Reference Index
Part NumberManufacturer
707838 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
707837 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
NS 202010-02 Sps Technologies, Llc Dba PB Fasteners (USA)
LHTA55-2860-02 Harvard Industries Inc (USA)
707836 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
707839 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
K3031-3 PRIMARY Howmet Global Fastening Systems Inc (USA)
Related Parts
5310-00-680-6840INTERCHANGEABLE
NUT,SELF-LOCKING,PLATE
K3031-3
5330-01-233-9038INTERCHANGEABLE
PARTS KIT,SEAL REPLACEMENT,MECHA
775627
5961-01-303-5993INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
707836

Frequently Asked Questions

What is NSN 5310-01-399-3127?

NSN 5310-01-399-3127 is a Nut,self-Locking,plate, manufactured by Howmet Global Fastening Systems Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-399-3127?

NSN 5310-01-399-3127 has 7 cross-referenced part numbers: 707838 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 707837 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), NS 202010-02 (Sps Technologies, Llc Dba PB Fasteners), LHTA55-2860-02 (Harvard Industries Inc), 707836 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney) and 2 more.

What NSN replaces 5310-01-399-3127?

There are 3 known substitutes for 5310-01-399-3127: 5310-00-680-6840, 5330-01-233-9038, 5961-01-303-5993. Verify interchangeability with system specifications before substitution.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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