NSN 5330-01-577-1991 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-577-1991. Manufacturer of record part number: AA404.
Also searched as5330-01-577-1991 ·
5330015771991 ·
NIIN 015771991 ·
01-577-1991 ·
FSC 5330 Packing and Gasket Materials · CAGE 24123 · AA404
Cross-Sectional Thickness: 0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
Style Designator: CIRCULAR
Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION
Outside Diameter: 2.813 INCHES NOMINAL IN
Aperture Diameter: 2.125 INCHES NOMINAL IN
Material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
1 manufacturer part number on file
Identification
NSN: 5330-01-577-1991
NIIN: 015771991
FSC: 5330 — Packing and Gasket Materials
FSG: 53 — Hardware and Abrasives
Primary part number: AA404
Manufacturer: Gast Mfg Corp
General Description
The Gasket, cataloged under National Stock Number 5330-01-577-1991, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Gast Mfg Corp. Government technical data includes 6 specifications, cited from the U.S. Government catalog. 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
Parameter
Value
NSN
5330-01-577-1991
Primary Part Number
AA404
Item Name
Gasket
FSC / FSG
5330 / 53 — Packing and Gasket Materials
Manufacturer
Gast Mfg Corp
Status
ACTIVE
Cross-Sectional Thickness
0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN
Style Designator
CIRCULAR
Cross-Sectional Shape Style
SOLID SINGLE OR COMPOSITION
Outside Diameter
2.813 INCHES NOMINAL IN
Aperture Diameter
2.125 INCHES NOMINAL IN
Material
RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Other items in FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085
RETAINER
5330-00-000-0167
PARTS KIT,SEAL REPLACEMENT,MECHA
5330-00-000-5275
5330-00-000-5275 · Item name not on file
5330-00-001-1260
SEAL,NONMETALLIC SPECIAL SHAPED
5330-00-001-1833
SEAL,PLAIN ENCASED
5330-00-001-1844
GLAND,RESERVOIR,INDICATOR END
5330-00-001-1845
5330-00-001-1845 · Item name not on file
5330-00-001-1846
5330-00-001-1846 · Item name not on file
Frequently Asked Questions
What is NSN 5330-01-577-1991?
NSN 5330-01-577-1991 is a Gasket, manufactured by Gast Mfg Corp, classified under FSC 5330, Packing and Gasket Materials. Status: active.
What part numbers are listed for NSN 5330-01-577-1991?
NSN 5330-01-577-1991 has 1 manufacturer part number on file: AA404 (Gast Mfg Corp).
What are the specifications of AA404?
Key specifications for AA404: Cross-Sectional Thickness: 0.110 INCHES MINIMUM AND 0.140 INCHES MAXIMUM IN; Style Designator: CIRCULAR; Cross-Sectional Shape Style: SOLID SINGLE OR COMPOSITION; Outside Diameter: 2.813 INCHES NOMINAL IN. 6 specifications are documented in the U.S. Government catalog.
Is NSN 5330-01-577-1991 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.