PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

158-10Washer,lock

Curt Manufacturing Llc · NSN 5310-01-081-2523 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-01-081-2523 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-081-2523. Primary manufacturer part number: 158-10.
Features
  • Washer,lock — FSC 5310
  • Hole Diameter: 0.250 INCHES NOMINAL IN
  • Outside Diameter: 0.750 INCHES NOMINAL IN
  • 4 verified cross-references
  • Primary manufacturer: Curt Manufacturing Llc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Washer,lock, cataloged under National Stock Number 5310-01-081-2523, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Curt Manufacturing Llc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5310-01-081-2523
Primary Part Number158-10
Item NameWasher,lock
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerCurt Manufacturing Llc
StatusACTIVE
Hole Diameter0.250 INCHES NOMINAL IN
Outside Diameter0.750 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 11
5120-00-240-6051 INTERCHANGEABLE
Bar,pinch
4820-00-288-75682/CL.125/SIZE 1-1/2 IN INTERCHANGEABLE
Valve,gate
Manufacturers Standardization Society of the Valve and Fittings Industry Inc
5935-00-759-511710682815-1 INTERCHANGEABLE
Jack,tip
Us Army Aviation and Missile Command
4810-00-777-068815810 INTERCHANGEABLE
Valve,solenoid
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5905-00-786-38462100-2833 INTERCHANGEABLE
Resistor,variable,nonwire Wound,
Keysight Technologies Inc
1615-00-826-665015810 INTERCHANGEABLE
Cover,slip Ring
Moog Inc.
5330-01-149-2048158-10 INTERCHANGEABLE
Gasket
Gulfgate Equipment, Inc.
3040-01-169-375115810 INTERCHANGEABLE
Shaft,straight
Forenta Lp
6850-01-210-017015810 INTERCHANGEABLE
Sealer,chemical
Illinois Tool Works Inc. Dba Illinois Tool Works Inc
8145-01-467-063515810 INTERCHANGEABLE
Shipping and Storage Container,e
Naval Inventory Control Point
Cross-Reference Index
Part NumberManufacturer
10RT21 Oshkosh Corp (USA)
10RT21 Oshkosh Defense Llc (USA)
158-10 PRIMARY Curt Manufacturing Llc (USA)
158-10B Curt Manufacturing Llc (USA)
Related Parts
5120-00-240-6051INTERCHANGEABLE
BAR,PINCH
4820-00-288-7568INTERCHANGEABLE
VALVE,GATE
2/CL.125/SIZE 1-1/2 IN
5935-00-759-5117INTERCHANGEABLE
JACK,TIP
10682815-1
4810-00-777-0688INTERCHANGEABLE
VALVE,SOLENOID
15810
5905-00-786-3846INTERCHANGEABLE
RESISTOR,VARIABLE,NONWIRE WOUND,
2100-2833
1615-00-826-6650INTERCHANGEABLE
COVER,SLIP RING
15810
5330-01-149-2048INTERCHANGEABLE
GASKET
158-10
3040-01-169-3751INTERCHANGEABLE
SHAFT,STRAIGHT
15810
6850-01-210-0170INTERCHANGEABLE
SEALER,CHEMICAL
15810
8145-01-467-0635INTERCHANGEABLE
SHIPPING AND STORAGE CONTAINER,E
15810
6515-01-598-9640INTERCHANGEABLE
MASK,ORONASAL
15810

Frequently Asked Questions

What is NSN 5310-01-081-2523?

NSN 5310-01-081-2523 is a Washer,lock, manufactured by Curt Manufacturing Llc, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-01-081-2523?

NSN 5310-01-081-2523 has 4 cross-referenced part numbers: 10RT21 (Oshkosh Corp), 10RT21 (Oshkosh Defense Llc), 158-10 (Curt Manufacturing Llc), 158-10B (Curt Manufacturing Llc).

What NSN replaces 5310-01-081-2523?

There are 11 known substitutes for 5310-01-081-2523: 5120-00-240-6051, 4820-00-288-7568, 5935-00-759-5117 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 158-10?

Key specifications for 158-10: Hole Diameter: 0.250 INCHES NOMINAL IN; End Item Identification: NSN 2320-01-097-0260 HEMTT (HEAVY EXPANDED MOBILITY TACTICAL TRUCK); Outside Diameter: 0.750 INCHES NOMINAL IN. 3 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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