PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

N21674PC38Nut,plain,slotted,hexagon

Hatch & Kirk, Inc. · NSN 5310-00-010-2645 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-010-2645 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-010-2645. Primary manufacturer part number: N21674PC38.
Features
  • Nut,plain,slotted,hexagon — FSC 5310
  • Thread Quantity Per Inch: 24
  • Nominal Thread Size: 0.375 INCHES IN
  • Bearing Surface Type: CHAMFERED OR WASHER FACED
  • Thread Series: UNF
  • Thread Direction: RIGHT-HAND
  • Material: STEEL OVERALL
  • Nut Height: 0.328 INCHES NOMINAL IN
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
  • Applications requiring Steel Overall construction
General Description

The Nut,plain,slotted,hexagon, cataloged under National Stock Number 5310-00-010-2645, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hatch & Kirk, Inc.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 25 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5310-00-010-2645
Primary Part NumberN21674PC38
Item NameNut,plain,slotted,hexagon
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerHatch & Kirk, Inc.
StatusCANCELLED
Thread Quantity Per Inch24
Nominal Thread Size0.375 INCHES IN
Bearing Surface TypeCHAMFERED OR WASHER FACED
Thread SeriesUNF
Thread DirectionRIGHT-HAND
MaterialSTEEL OVERALL
Nut Height0.328 INCHES NOMINAL IN
Thread Class2B
Width Across Flats0.562 INCHES NOMINAL IN
Nut StyleSLOTTED, HEXAGON
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 10
5905-00-141-0599 INTERCHANGEABLE
Resistor,fixed,composition
3439-00-165-4198AWSA5.28-79 ER80S-D2 0.094 10LB INTERCHANGEABLE
Rod,welding
American Welding Society, Inc.
5355-00-168-3260102645 INTERCHANGEABLE
Window,dial
L3harris Technologies, Inc Div Space & Airborne Systems
8145-00-514-279813414-102 INTERCHANGEABLE
Shipping and Storage Container,c
Naval Inventory Control Point
5310-00-579-5430 INTERCHANGEABLE
Nut,plain,slotted,hexagon
4710-00-814-9110 INTERCHANGEABLE
Tube Assembly,metal
3439-00-903-7831AWSA5.28-79 ER80S-D2 0.062 25LB INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
3439-00-903-7832AWSA5.28-15 ER80S-D2 0.045 33LB INTERCHANGEABLE
Electrode,welding
American Welding Society, Inc.
4320-01-067-8123A608 INTERCHANGEABLE
Impeller,pump,centrifugal
Circor Naval Solutions Llc Dba Warren Pumps
6920-01-230-1090 INTERCHANGEABLE
Oscillator Assembly,training Aid
Cross-Reference Index
Part NumberManufacturer
N21674PC38 General Motors Corp (USA)
N21674PC38 PRIMARY Hatch & Kirk, Inc. (USA)
N21738PCCD72 PRIMARY Hatch & Kirk, Inc. (USA)
122728 General Motors Corp (USA)
122728 General Motors Corp Electro-Motive Div (USA)
N21738PCCD72 General Motors Corp (USA)
102645 General Motors Llc Dba General Motors Llc (USA)
102645 PRIMARY Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
102645 General Motors Corp (USA)
33965S Ford Motor Co Ford Parts and Service Div Government Part Sales (USA)
N21738PCCD72 General Motors Llc Dba General Motors Llc (USA)
1694-1PC54 PRIMARY Kaydon Custom Filtration Corporation (USA)
122728 Rolls-Royce Solutions America Inc (USA)
N21674PC38 General Motors Llc Dba General Motors Llc (USA)
N21674PC38 General Motors Corp Electro-Motive Div (USA)
102645 Napco International Llc Dba Napco International Inc (USA)
122728 PRIMARY Chrysler Realty Company Llc Dba Daimler Chrysler (USA)
1789PCCD72 PRIMARY Kaydon Custom Filtration Corporation (USA)
N21738PCCD72 General Motors Corp Electro-Motive Div (USA)
CD72 Cooper Machinery Services Llc (USA)
Related Parts
5905-00-141-0599INTERCHANGEABLE
RESISTOR,FIXED,COMPOSITION
3439-00-165-4198INTERCHANGEABLE
ROD,WELDING
AWSA5.28-79 ER80S-D2 0.094 10LB
5355-00-168-3260INTERCHANGEABLE
WINDOW,DIAL
102645
8145-00-514-2798INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,C
13414-102
5310-00-579-5430INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
4710-00-814-9110INTERCHANGEABLE
TUBE ASSEMBLY,METAL
3439-00-903-7831INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.28-79 ER80S-D2 0.062 25LB
3439-00-903-7832INTERCHANGEABLE
ELECTRODE,WELDING
AWSA5.28-15 ER80S-D2 0.045 33LB
4320-01-067-8123INTERCHANGEABLE
IMPELLER,PUMP,CENTRIFUGAL
A608
6920-01-230-1090INTERCHANGEABLE
OSCILLATOR ASSEMBLY,TRAINING AID

Frequently Asked Questions

What is NSN 5310-00-010-2645?

NSN 5310-00-010-2645 is a Nut,plain,slotted,hexagon, manufactured by Hatch & Kirk, Inc., classified under FSC 5310 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5310-00-010-2645?

NSN 5310-00-010-2645 has 25 cross-referenced part numbers: N21674PC38 (General Motors Corp), N21674PC38 (Hatch & Kirk, Inc.), N21738PCCD72 (Hatch & Kirk, Inc.), 122728 (General Motors Corp), 122728 (General Motors Corp Electro-Motive Div) and 20 more.

What NSN replaces 5310-00-010-2645?

There are 10 known substitutes for 5310-00-010-2645: 5905-00-141-0599, 3439-00-165-4198, 5355-00-168-3260 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of N21674PC38?

Key specifications for N21674PC38: Thread Quantity Per Inch: 24; Nominal Thread Size: 0.375 INCHES IN; Bearing Surface Type: CHAMFERED OR WASHER FACED; Thread Series: UNF. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5310-00-010-2645 still in active supply?

NSN 5310-00-010-2645 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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