NSN 5330-01-556-7422 · NIIN 015567422 · Part number 44955K176
Mcmaster-Carr Supply Co · FSC 5330 — Packing and Gasket Materials · FSG 53 — Hardware and Abrasives · CAGE 39428
Government record, cited
NSN 5330-01-556-7422 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-556-7422. Manufacturer of record part number: 44955K176.
Also searched as5330-01-556-7422 ·
5330015567422 ·
NIIN 015567422 ·
01-556-7422 ·
FSC 5330 Packing and Gasket Materials · CAGE 39428 · 44955K176
The Gasket,spiral Wound, cataloged under National Stock Number 5330-01-556-7422, is classified within Federal Supply Class 5330 (Packing and Gasket Materials) of the Hardware and Abrasives group. The manufacturer of record is Mcmaster-Carr Supply Co. Government technical data includes 3 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
5330-01-556-7422
Primary Part Number
44955K176
Item Name
Gasket,spiral Wound
FSC / FSG
5330 / 53 — Packing and Gasket Materials
Manufacturer
Mcmaster-Carr Supply Co
Status
ACTIVE
Style Designator
CIRCULAR
Outside Diameter
4.375 INCHES NOMINAL IN
Aperture Diameter
2.750 INCHES NOMINAL IN
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 5330-01-556-7422?
NSN 5330-01-556-7422 is a Gasket,spiral Wound, manufactured by Mcmaster-Carr Supply Co, classified under FSC 5330, Packing and Gasket Materials. Status: active.
What part numbers are listed for NSN 5330-01-556-7422?
NSN 5330-01-556-7422 has 1 manufacturer part number on file: 44955K176 (Mcmaster-Carr Supply Co).
What are the specifications of 44955K176?
Key specifications for 44955K176: Style Designator: CIRCULAR; Outside Diameter: 4.375 INCHES NOMINAL IN; Aperture Diameter: 2.750 INCHES NOMINAL IN; Special Features: SEALING ELEMENT 304 STAINLESS STEEL WITH PURE GRAPHITE FILLER, OUTER RING CARBON STEEL; INNER DIA 2 3/4", OUTTER DIA 4 3/8", SEALING ELEMENT OUTER DIA 3 3/8"; MAX PRESSURE 2500PSI. 3 specifications are documented in the U.S. Government catalog.
Is NSN 5330-01-556-7422 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.