PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1A175-21-2Cylinder Sleeve

Fwd Seagrave Holdings Lp · NSN 2805-00-591-1977 · FSC 2805 · No Item Name Available
Verified by PartsTable
NSN 2805-00-591-1977 — this item is cataloged by the U.S. Government under National Stock Number 2805-00-591-1977. Primary manufacturer part number: 1A175-21-2.
Features
  • Cylinder Sleeve — FSC 2805
  • 3 verified cross-references
  • Primary manufacturer: Fwd Seagrave Holdings Lp
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Cylinder Sleeve, cataloged under National Stock Number 2805-00-591-1977, is classified within Federal Supply Class 2805 (No Item Name Available) of the Engines, Turbines, and Components group. The primary manufacturer of record is Fwd Seagrave Holdings Lp. This item has 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameCylinder Sleeve
FSC / FSG2805 — No Item Name Available (FSG 28)
ManufacturersDresser, Llc (CAGE 64104); Fwd Seagrave Holdings Lp (CAGE 23382)
Technical Specifications
ParameterValue
NSN2805-00-591-1977
Primary Part Number1A175-21-2
Item NameCylinder Sleeve
FSC / FSG2805 / 28 — No Item Name Available
ManufacturerFwd Seagrave Holdings Lp
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5305-01-209-9243 INTERCHANGEABLE
Screw,cap,hexagon Head
4240-01-584-4341805-130 INTERCHANGEABLE
Nosepiece,oxygen Mask
Kirby Morgan Dive Systems Inc
4220-01-664-8028805-130 INTERCHANGEABLE
Clip,nose,diver's
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
175-21-2 Dresser, Llc (USA)
805130 Dresser, Llc (USA)
1A175-21-2 PRIMARY Fwd Seagrave Holdings Lp (USA)
Related Parts
5305-01-209-9243INTERCHANGEABLE
SCREW,CAP,HEXAGON HEAD
4240-01-584-4341INTERCHANGEABLE
NOSEPIECE,OXYGEN MASK
805-130
4220-01-664-8028INTERCHANGEABLE
CLIP,NOSE,DIVER'S
805-130

Frequently Asked Questions

What is NSN 2805-00-591-1977?

NSN 2805-00-591-1977 is a Cylinder Sleeve, manufactured by Fwd Seagrave Holdings Lp, classified under FSC 2805 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 2805-00-591-1977?

NSN 2805-00-591-1977 has 3 cross-referenced part numbers: 175-21-2 (Dresser, Llc), 805130 (Dresser, Llc), 1A175-21-2 (Fwd Seagrave Holdings Lp).

What NSN replaces 2805-00-591-1977?

There are 3 known substitutes for 2805-00-591-1977: 5305-01-209-9243, 4240-01-584-4341, 4220-01-664-8028. Verify interchangeability with system specifications before substitution.

Is NSN 2805-00-591-1977 still in active supply?

NSN 2805-00-591-1977 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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