PartsTable TECHNICAL DATA SHEET
NSN 2530-01-688-3502Government record, cited

Knuckle, Towbar2530-01-688-3502

NSN 2530-01-688-3502 · NIIN 016883502 · Part number RG374-3
Lockheed Martin Corporation · FSC 2530 — Vehicular Brake, Steering, Axle, Wheel, and Track Components · FSG 25 — Vehicular Equipment Components · CAGE 0L1E5
Government record, cited
NSN 2530-01-688-3502 — this item is cataloged by the U.S. Government under National Stock Number 2530-01-688-3502. Manufacturer of record part number: RG374-3.
Also searched as  2530-01-688-3502 · 2530016883502 · NIIN 016883502 · 01-688-3502 · FSC 2530 Vehicular Brake, Steering, Axle, Wheel, and Track Components · CAGE 0L1E5 · RG374-3
Nearby stock numbers  ·
Features
  • Knuckle,towbar — FSC 2530
  • 1 manufacturer part number on file
  • Manufacturer of record: Lockheed Martin Corporation
Identification
  • NSN: 2530-01-688-3502
  • NIIN: 016883502
  • FSC: 2530 — Vehicular Brake, Steering, Axle, Wheel, and Track Components
  • FSG: 25 — Vehicular Equipment Components
  • Primary part number: RG374-3
  • Manufacturer: Lockheed Martin Corporation
General Description

The Knuckle,towbar, cataloged under National Stock Number 2530-01-688-3502, is classified within Federal Supply Class 2530 (Vehicular Brake, Steering, Axle, Wheel, and Track Components) of the Vehicular Equipment Components group. The manufacturer of record is Lockheed Martin Corporation. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2530-01-688-3502
Primary Part NumberRG374-3
Item NameKnuckle,towbar
FSC / FSG2530 / 25 — Vehicular Brake, Steering, Axle, Wheel, and Track Components
ManufacturerLockheed Martin Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
DEMIL CodeDEMIL A — No Demilitarization Required
HazardPossible hazard — SDS may be required (DLA HMIC P)
Criticality CodeF
Cross-Reference Index
Part NumberManufacturer
RG374-3 PRIMARY Lockheed Martin Corporation (USA)
No interchangeability data on file.
Other items in FSC 2530 — Vehicular Brake, Steering, Axle, Wheel, and Track Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2530-00-003-5229
2530-00-003-5229 · Item name not on file
2530-00-139-4058
PARTS KIT,HYDRAULIC BRAKE MASTER
2530-00-363-4183
CYLINDER ASSEMBLY,HYDRAULIC BRAK
2530-00-478-5792
PARTS KIT,HYDRAULIC BRAKE MASTER
2530-00-496-2927
WHEEL ASSEMBLY,PNEUMATIC TIRE
2530-00-701-0656
PLATE SUPPORTING SP
2530-00-734-2546
CYLINDER ASSEMBLY,HYDRAULIC BRAK
2530-01-171-5122
CYLINDER ASSEMBLY,HYDRAULIC BRAK

Frequently Asked Questions

What is NSN 2530-01-688-3502?

NSN 2530-01-688-3502 is a Knuckle,towbar, manufactured by Lockheed Martin Corporation, classified under FSC 2530, Vehicular Brake, Steering, Axle, Wheel, and Track Components. Status: active.

What part numbers are listed for NSN 2530-01-688-3502?

NSN 2530-01-688-3502 has 1 manufacturer part number on file: RG374-3 (Lockheed Martin Corporation).

What are the specifications of RG374-3?

Key specifications for RG374-3: End Item Identification: U-2 AIRCRAFT. 0 specifications are documented in the U.S. Government catalog.

Is NSN 2530-01-688-3502 hazardous material?

Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.

Sources

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.

U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.

✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.
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