PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PMA-21ARail,airframe,aircraft

Emcor Enclosures Llc · NSN 1560-01-534-6938 · FSC 1560 · No Item Name Available
Verified by PartsTable
NSN 1560-01-534-6938 — this item is cataloged by the U.S. Government under National Stock Number 1560-01-534-6938. Primary manufacturer part number: PMA-21A.
Features
  • Rail,airframe,aircraft — FSC 1560
  • Material: STEEL
  • Aircraft Location: ENGINE
  • Material Thickness: 0.120 INCHES NOMINAL IN
  • Aircraft Mission Design Series: T/53
  • Height: 0.962 INCHES MINIMUM AND 1.002 INCHES MAXIMUM IN
  • 3 verified cross-references
  • Primary manufacturer: Emcor Enclosures Llc
Applications
  • Applications requiring Steel construction
General Description

The Rail,airframe,aircraft, cataloged under National Stock Number 1560-01-534-6938, is classified within Federal Supply Class 1560 (No Item Name Available) of the Aircraft and Airframe Components group. The primary manufacturer of record is Emcor Enclosures Llc. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN1560-01-534-6938
Primary Part NumberPMA-21A
Item NameRail,airframe,aircraft
FSC / FSG1560 / 15 — No Item Name Available
ManufacturerEmcor Enclosures Llc
StatusACTIVE
MaterialSTEEL
Aircraft LocationENGINE
Material Thickness0.120 INCHES NOMINAL IN
Aircraft Mission Design SeriesT/53
Height0.962 INCHES MINIMUM AND 1.002 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
4460-00-788-156192760 INTERCHANGEABLE
Compressed Air Purification Syst
Mine Safety Appliances Company
6625-01-087-9879 INTERCHANGEABLE
Jar Exhaust
4820-01-440-6824 INTERCHANGEABLE
Piston,valve
4330-01-716-22158-0032-1 INTERCHANGEABLE
Adapter,fluid Filter
Triumph Actuation Systems - Yakima, Llc Dba Triumph Actuation Systems - Yakima Llc
Cross-Reference Index
Part NumberManufacturer
PMA-21A PRIMARY Emcor Enclosures Llc (USA)
409864 Emcor Enclosures Llc (USA)
8003-21 Emcor Enclosures Llc (USA)
Related Parts
4460-00-788-1561INTERCHANGEABLE
COMPRESSED AIR PURIFICATION SYST
92760
6625-01-087-9879INTERCHANGEABLE
JAR EXHAUST
4820-01-440-6824INTERCHANGEABLE
PISTON,VALVE
4330-01-716-2215INTERCHANGEABLE
ADAPTER,FLUID FILTER
8-0032-1

Frequently Asked Questions

What is NSN 1560-01-534-6938?

NSN 1560-01-534-6938 is a Rail,airframe,aircraft, manufactured by Emcor Enclosures Llc, classified under FSC 1560 (No Item Name Available). Status: active.

What are the part numbers for NSN 1560-01-534-6938?

NSN 1560-01-534-6938 has 3 cross-referenced part numbers: PMA-21A (Emcor Enclosures Llc), 409864 (Emcor Enclosures Llc), 8003-21 (Emcor Enclosures Llc).

What NSN replaces 1560-01-534-6938?

There are 4 known substitutes for 1560-01-534-6938: 4460-00-788-1561, 6625-01-087-9879, 4820-01-440-6824 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of PMA-21A?

Key specifications for PMA-21A: Material: STEEL; Aircraft Location: ENGINE; Overall Length: 20.960 INCHES MINIMUM AND 21.040 INCHES MAXIMUM IN; Material Thickness: 0.120 INCHES NOMINAL IN. 10 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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