PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

7377946Spring Assembly,leaf

U S Army Tank Automotive Command Amsta-Im-Mm · NSN 2510-00-737-7946 · FSC 2510 · No Item Name Available
Verified by PartsTable
NSN 2510-00-737-7946 — this item is cataloged by the U.S. Government under National Stock Number 2510-00-737-7946. Primary manufacturer part number: 7377946.
Features
  • Spring Assembly,leaf — FSC 2510
  • Bushing Type: PLAIN
  • Material: STEEL OVERALL
  • Spring Length Under Load: 46.000 INCHES NOMINAL IN
  • Spring Deflection Rate: 1875.000 POUNDS PER INCH NOMINAL LBS
  • Elliptic Shape: SEMI
  • Design Type: MAINSPRING W/AUXILIARY LEAF
  • Rebound Clip Quantity: 4
Applications
  • Mechanical energy storage
  • Vibration dampening
  • Return mechanism operation
  • Applications requiring Steel Overall construction
General Description

The Spring Assembly,leaf, cataloged under National Stock Number 2510-00-737-7946, is classified within Federal Supply Class 2510 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN2510-00-737-7946
Primary Part Number7377946
Item NameSpring Assembly,leaf
FSC / FSG2510 / 25 — No Item Name Available
ManufacturerU S Army Tank Automotive Command Amsta-Im-Mm
StatusCANCELLED
Bushing TypePLAIN
MaterialSTEEL OVERALL
Spring Length Under Load46.000 INCHES NOMINAL IN
Spring Deflection Rate1875.000 POUNDS PER INCH NOMINAL LBS
Elliptic ShapeSEMI
Design TypeMAINSPRING W/AUXILIARY LEAF
Rebound Clip Quantity4
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5330-00-291-2797 INTERCHANGEABLE
Seal,plain Encased
5120-00-293-0008W-156 INTERCHANGEABLE
Wrench,adjustable
Ngk Metals Corporation Dba N G K Berylco
5945-00-842-9999W156 INTERCHANGEABLE
Heater,overload
Ward Leonard Ct Llc
5342-01-107-7023490001-6 INTERCHANGEABLE
Clamp
Monadnock Company, the Dba Lisi Aerospace
3030-01-418-8961500071 INTERCHANGEABLE
Belt,v
Tri-Tec Manufacturing Llc
8340-01-463-9813500071 INTERCHANGEABLE
Cable,guy Assembly
Clamshell Structures, Inc
5130-01-544-3213500.071 INTERCHANGEABLE
Nut,center
Desco Manufacturing Company Div Desco Manufacturing Co. Inc.
4010-01-572-34647377946 INTERCHANGEABLE
Wire Rope Assembly,single Leg
Naval Sea Systems Command
6150-01-656-876350007-1 INTERCHANGEABLE
Cable Assembly,power,electrical
Science Applications International Corporation
Cross-Reference Index
Part NumberManufacturer
7377946 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
B121B Spring Perch Co Inc (USA)
500071 Brockway Motor Trucks Div of Mack Trucks Inc (USA)
7038513 PRIMARY U S Army Tank Automotive Command Amsta-Im-Mm (USA)
W156 Spring Perch Co Inc (USA)
Related Parts
5330-00-291-2797INTERCHANGEABLE
SEAL,PLAIN ENCASED
5120-00-293-0008INTERCHANGEABLE
WRENCH,ADJUSTABLE
W-156
5945-00-842-9999INTERCHANGEABLE
HEATER,OVERLOAD
W156
5342-01-107-7023INTERCHANGEABLE
CLAMP
490001-6
3030-01-418-8961INTERCHANGEABLE
BELT,V
500071
8340-01-463-9813INTERCHANGEABLE
CABLE,GUY ASSEMBLY
500071
5130-01-544-3213INTERCHANGEABLE
NUT,CENTER
500.071
4010-01-572-3464INTERCHANGEABLE
WIRE ROPE ASSEMBLY,SINGLE LEG
7377946
6150-01-656-8763INTERCHANGEABLE
CABLE ASSEMBLY,POWER,ELECTRICAL
50007-1

Frequently Asked Questions

What is NSN 2510-00-737-7946?

NSN 2510-00-737-7946 is a Spring Assembly,leaf, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 2510 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2510-00-737-7946?

NSN 2510-00-737-7946 has 5 cross-referenced part numbers: 7377946 (U S Army Tank Automotive Command Amsta-Im-Mm), B121B (Spring Perch Co Inc), 500071 (Brockway Motor Trucks Div of Mack Trucks Inc), 7038513 (U S Army Tank Automotive Command Amsta-Im-Mm), W156 (Spring Perch Co Inc).

What NSN replaces 2510-00-737-7946?

There are 9 known substitutes for 2510-00-737-7946: 5330-00-291-2797, 5120-00-293-0008, 5945-00-842-9999 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 7377946?

Key specifications for 7377946: Bushing Type: PLAIN; Material: STEEL OVERALL; Spring Length Under Load: 46.000 INCHES NOMINAL IN; Spring Deflection Rate: 1875.000 POUNDS PER INCH NOMINAL LBS. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 2510-00-737-7946 still in active supply?

NSN 2510-00-737-7946 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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