PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21007Nut,plain,hexagon

Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect · NSN 5310-00-721-7815 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-721-7815 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-721-7815. Primary manufacturer part number: 21007.
Features
  • Nut,plain,hexagon — FSC 5310
  • Surface Treatment Document and Classification: QQ-P-416,TY 3,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material: STEEL OVERALL
  • Bearing Surface Type: CHAMFERED
  • Surface Treatment: CADMIUM OVERALL
  • Nominal Thread Size: 0.375 INCHES IN
  • Thread Series: UNF
  • Thread Quantity Per Inch: 24
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-721-7815, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-721-7815
Primary Part Number21007
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerWinchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect
StatusACTIVE
Surface Treatment Document and ClassificationQQ-P-416,TY 3,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL OVERALL
Bearing Surface TypeCHAMFERED
Surface TreatmentCADMIUM OVERALL
Nominal Thread Size0.375 INCHES IN
Thread SeriesUNF
Thread Quantity Per Inch24
Nut Height0.115 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
Thread DirectionRIGHT-HAND
Width Across Flats0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
Nut StyleHEXAGON
Thread Class2B
Countersink Angle100.0 DEGREES NOMINAL NUT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5305-00-011-3256113256 INTERCHANGEABLE
Screw,drive
Us Army Aviation and Missile Command
5315-00-094-725121007 INTERCHANGEABLE
Pin,shoulder,headless
Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems
3110-00-108-922410720 INTERCHANGEABLE
Bearing,ball,annular
Berkel Inc
5950-00-494-335521007 INTERCHANGEABLE
Reactor
Magnetika Inc
3110-00-554-6030 INTERCHANGEABLE
Bearing,ball,annular
5940-00-983-6085 INTERCHANGEABLE
Terminal Board
5920-01-029-5887 INTERCHANGEABLE
Fuse Link,electrical
2920-01-047-9359 INTERCHANGEABLE
Distributor,ignition System
5975-01-097-339921007 INTERCHANGEABLE
Panel,blank
Smiths Aerospace, Inc., Electronic Systems-Grand Rapids
5330-01-119-8940 INTERCHANGEABLE
Gasket
Cross-Reference Index
Part NumberManufacturer
PR307-109 Schroff Inc (USA)
943902-109 Raytheon Company Dba Raytheon (USA)
276MR582P019 Raytheon Company Div Corp (USA)
XA152 Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation (USA)
PR307-109 Precise of California Div of Adjustable Bushing Corp (USA)
21007 PRIMARY Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect (USA)
Related Parts
5305-00-011-3256INTERCHANGEABLE
SCREW,DRIVE
113256
5315-00-094-7251INTERCHANGEABLE
PIN,SHOULDER,HEADLESS
21007
3110-00-108-9224INTERCHANGEABLE
BEARING,BALL,ANNULAR
10720
5950-00-494-3355INTERCHANGEABLE
REACTOR
21007
3110-00-554-6030INTERCHANGEABLE
BEARING,BALL,ANNULAR
5940-00-983-6085INTERCHANGEABLE
TERMINAL BOARD
5920-01-029-5887INTERCHANGEABLE
FUSE LINK,ELECTRICAL
2920-01-047-9359INTERCHANGEABLE
DISTRIBUTOR,IGNITION SYSTEM
5975-01-097-3399INTERCHANGEABLE
PANEL,BLANK
21007
5330-01-119-8940INTERCHANGEABLE
GASKET
5950-01-271-4817INTERCHANGEABLE
TRANSFORMER,POWER
5360-01-280-7258INTERCHANGEABLE
SPRING,SPECIAL

Frequently Asked Questions

What is NSN 5310-00-721-7815?

NSN 5310-00-721-7815 is a Nut,plain,hexagon, manufactured by Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-721-7815?

NSN 5310-00-721-7815 has 6 cross-referenced part numbers: PR307-109 (Schroff Inc), 943902-109 (Raytheon Company Dba Raytheon), 276MR582P019 (Raytheon Company Div Corp), XA152 (Winchester Interconnect Corporation Dba Winchester Interconnect Div Winchester Interconnect Rf Corporation), PR307-109 (Precise of California Div of Adjustable Bushing Corp) and 1 more.

What NSN replaces 5310-00-721-7815?

There are 12 known substitutes for 5310-00-721-7815: 5305-00-011-3256, 5315-00-094-7251, 3110-00-108-9224 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21007?

Key specifications for 21007: Surface Treatment Document and Classification: QQ-P-416,TY 3,CL 2 FED SPEC SINGLE TREATMENT RESPONSE OVERALL; Material: STEEL OVERALL; Bearing Surface Type: CHAMFERED; Surface Treatment: CADMIUM OVERALL. 13 total characteristics are documented in the Federal Logistics Information System.

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