PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A-A-52522BLining Material,friction

Federal Commercial Item Description Promulgated by General Services Administration Washington DC · NSN 2530-00-278-6499 · FSC 2530 · No Item Name Available
Verified by PartsTable
NSN 2530-00-278-6499 — this item is cataloged by the U.S. Government under National Stock Number 2530-00-278-6499. Primary manufacturer part number: A-A-52522B.
Features
  • Lining Material,friction — FSC 2530
  • Features Provided: FLEXIBLE FRICTION LINING
  • Fabrication Method: MOLDED
  • Supplementary Features: THIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL. THE CURRENT APPROVED SOURCES 58536 HAVE INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984. THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984
  • Width: 4.000 INCHES NOMINAL IN
  • Thickness: 0.375 INCHES NOMINAL IN
  • Application Type: DRY
  • Nondefinitive Spec/std Data: 2 TYPE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Lining Material,friction, cataloged under National Stock Number 2530-00-278-6499, is classified within Federal Supply Class 2530 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Federal Commercial Item Description Promulgated by General Services Administration Washington DC. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN2530-00-278-6499
Primary Part NumberA-A-52522B
Item NameLining Material,friction
FSC / FSG2530 / 25 — No Item Name Available
ManufacturerFederal Commercial Item Description Promulgated by General Services Administration Washington DC
StatusACTIVE
Features ProvidedFLEXIBLE FRICTION LINING
Fabrication MethodMOLDED
Supplementary FeaturesTHIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL. THE CURRENT APPROVED SOURCES 58536 HAVE INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984. THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984
Width4.000 INCHES NOMINAL IN
Thickness0.375 INCHES NOMINAL IN
Application TypeDRY
Nondefinitive Spec/std Data2 TYPE
Lining StyleBULK LINING
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2530-00-141-8544GGW 3IN X 1/4IN INTERCHANGEABLE
Lining Material,friction
Scan-Pac Mfg., Inc. Dba Scan-Pac
2530-00-278-6473 INTERCHANGEABLE
Lining Material,friction
2530-00-278-6492 INTERCHANGEABLE
Lining Material,friction
2530-00-278-6505232-AF 30'ROLL 3'WIDE,5/16"THIC INTERCHANGEABLE
Lining Material,friction
Scan-Pac Mfg., Inc. Dba Scan-Pac
2530-00-278-6507 INTERCHANGEABLE
Lining Material,friction
2530-00-278-6508 INTERCHANGEABLE
Lining Material,friction
2530-00-278-6509 INTERCHANGEABLE
Lining Material,friction
2530-00-278-6522 INTERCHANGEABLE
Lining Material,friction
2530-00-278-6526 INTERCHANGEABLE
Lining Material,friction
2530-00-278-6529 INTERCHANGEABLE
Lining Material,friction
Cross-Reference Index
Part NumberManufacturer
A-A-52522B Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
A-A-52522 Federal Commercial Item Description Promulgated by General Services Administration Washington DC (USA)
HHL00361 Federal Specifications Promulgated by General Services Administration Washington DC (USA)
Related Parts
2530-00-141-8544INTERCHANGEABLE
LINING MATERIAL,FRICTION
GGW 3IN X 1/4IN
2530-00-278-6473INTERCHANGEABLE
LINING MATERIAL,FRICTION
2530-00-278-6492INTERCHANGEABLE
LINING MATERIAL,FRICTION
2530-00-278-6505INTERCHANGEABLE
LINING MATERIAL,FRICTION
232-AF 30'ROLL 3'WIDE,5/16"THIC
2530-00-278-6507INTERCHANGEABLE
LINING MATERIAL,FRICTION
2530-00-278-6508INTERCHANGEABLE
LINING MATERIAL,FRICTION
2530-00-278-6509INTERCHANGEABLE
LINING MATERIAL,FRICTION
2530-00-278-6522INTERCHANGEABLE
LINING MATERIAL,FRICTION
2530-00-278-6526INTERCHANGEABLE
LINING MATERIAL,FRICTION
2530-00-278-6529INTERCHANGEABLE
LINING MATERIAL,FRICTION
2530-00-278-6542INTERCHANGEABLE
LINING MATERIAL,FRICTION
2530-00-278-6587INTERCHANGEABLE
LINING MATERIAL,FRICTION
GG-1/4-X-4

Frequently Asked Questions

What is NSN 2530-00-278-6499?

NSN 2530-00-278-6499 is a Lining Material,friction, manufactured by Federal Commercial Item Description Promulgated by General Services Administration Washington DC, classified under FSC 2530 (No Item Name Available). Status: active.

What are the part numbers for NSN 2530-00-278-6499?

NSN 2530-00-278-6499 has 3 cross-referenced part numbers: A-A-52522B (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), A-A-52522 (Federal Commercial Item Description Promulgated by General Services Administration Washington DC), HHL00361 (Federal Specifications Promulgated by General Services Administration Washington DC).

What NSN replaces 2530-00-278-6499?

There are 12 known substitutes for 2530-00-278-6499: 2530-00-141-8544, 2530-00-278-6473, 2530-00-278-6492 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A-A-52522B?

Key specifications for A-A-52522B: Features Provided: FLEXIBLE FRICTION LINING; Fabrication Method: MOLDED; Supplementary Features: THIS ITEM HAS BEEN REVIEWED FOR ASBESTOS MATERIAL. THE CURRENT APPROVED SOURCES 58536 HAVE INDICATED THEIR PART NUMBER CONTAINED ASBESTOS PRIOR TO 1984. THEY CONTINUE TO MANUFACTURE THE SAME PART NUMBER WITHOUT ASBESTOS MATERIAL AFTER 1984; Width: 4.000 INCHES NOMINAL IN. 8 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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