PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

13158Nut,plain,hexagon

Napco International Llc Dba Napco International Inc · NSN 5310-00-220-6683 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-220-6683 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-220-6683. Primary manufacturer part number: 13158.
Features
  • Nut,plain,hexagon — FSC 5310
  • Nut Style: HEXAGON
  • Nominal Thread Size: 0.750 INCHES IN
  • Bearing Surface Type: CHAMFERED
  • Thread Quantity Per Inch: 16
  • Thread Series: UNF
  • Thread Direction: RIGHT-HAND
  • Thread Class: 3B
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Comp 4140 Overall construction
General Description

The Nut,plain,hexagon, cataloged under National Stock Number 5310-00-220-6683, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Napco International Llc Dba Napco International Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-00-220-6683
Primary Part Number13158
Item NameNut,plain,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerNapco International Llc Dba Napco International Inc
StatusACTIVE
Nut StyleHEXAGON
Nominal Thread Size0.750 INCHES IN
Bearing Surface TypeCHAMFERED
Thread Quantity Per Inch16
Thread SeriesUNF
Thread DirectionRIGHT-HAND
Thread Class3B
Nut Height0.860 INCHES MINIMUM AND 0.890 INCHES MAXIMUM IN
Material Document and ClassificationSAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL
MaterialSTEEL COMP 4140 OVERALL
Width Across Flats1.053 INCHES MINIMUM AND 1.065 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
6610-00-756-05821315-8 INTERCHANGEABLE
Gasket,indicator
Elbitamerica, Inc.
1680-00-985-352413158 INTERCHANGEABLE
Disk,yellow,indicat
Meggitt Safety Systems Inc
5950-01-093-2407247ASC2764-001 INTERCHANGEABLE
Transformer,power
Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier
5305-01-273-942213158 INTERCHANGEABLE
Screw,cap,socket Head
Sps Technologies, Llc Dba PB Fasteners
5963-01-406-4552TTM635VME INTERCHANGEABLE
Electronic Module,standardized
Symmetricom, Inc
5120-01-580-7880 INTERCHANGEABLE
Socket,socket Wrench
Cross-Reference Index
Part NumberManufacturer
13158 PRIMARY Napco International Llc Dba Napco International Inc (USA)
Related Parts
6610-00-756-0582INTERCHANGEABLE
GASKET,INDICATOR
1315-8
1680-00-985-3524INTERCHANGEABLE
DISK,YELLOW,INDICAT
13158
5950-01-093-2407INTERCHANGEABLE
TRANSFORMER,POWER
247ASC2764-001
5305-01-273-9422INTERCHANGEABLE
SCREW,CAP,SOCKET HEAD
13158
5963-01-406-4552INTERCHANGEABLE
ELECTRONIC MODULE,STANDARDIZED
TTM635VME
5120-01-580-7880INTERCHANGEABLE
SOCKET,SOCKET WRENCH

Frequently Asked Questions

What is NSN 5310-00-220-6683?

NSN 5310-00-220-6683 is a Nut,plain,hexagon, manufactured by Napco International Llc Dba Napco International Inc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-220-6683?

NSN 5310-00-220-6683 has 1 cross-referenced part number: 13158 (Napco International Llc Dba Napco International Inc).

What NSN replaces 5310-00-220-6683?

There are 6 known substitutes for 5310-00-220-6683: 6610-00-756-0582, 1680-00-985-3524, 5950-01-093-2407 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 13158?

Key specifications for 13158: Nut Style: HEXAGON; Nominal Thread Size: 0.750 INCHES IN; Bearing Surface Type: CHAMFERED; Thread Quantity Per Inch: 16. 11 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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