PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

31577Seal,plain Encased

Hme, Inc. Dba Hme Ahrens-Fox · NSN 5330-01-080-9229 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-01-080-9229 — this item is cataloged by the U.S. Government under National Stock Number 5330-01-080-9229. Primary manufacturer part number: 31577.
Features
  • Seal,plain Encased — FSC 5330
  • Seal Width: 0.358 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
  • Material: STEEL CASE
  • Material: RUBBER SYNTHETIC SEALING ELEMENT
  • Sealing Element Style: ANGULAR
  • Accommodated Shaft Diameter: 4.000 INCHES NOMINAL IN
  • Case Style: RECESSED
  • Housing Bore Diameter: 5.475 INCHES MINIMUM AND 5.479 INCHES MAXIMUM IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Steel Case construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-01-080-9229, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Hme, Inc. Dba Hme Ahrens-Fox. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-01-080-9229
Primary Part Number31577
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerHme, Inc. Dba Hme Ahrens-Fox
StatusACTIVE
Seal Width0.358 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN
MaterialSTEEL CASE
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Sealing Element StyleANGULAR
Accommodated Shaft Diameter4.000 INCHES NOMINAL IN
Case StyleRECESSED
Housing Bore Diameter5.475 INCHES MINIMUM AND 5.479 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5310-01-731-3952CC59179-001 INTERCHANGEABLE
Washer,flat
Moog Inc. Dba Ampac-Isp Corp
Cross-Reference Index
Part NumberManufacturer
19AS677 Oshkosh Defense Llc (USA)
19AS677 Oshkosh Corp (USA)
31577 PRIMARY Hme, Inc. Dba Hme Ahrens-Fox (USA)
Related Parts
5310-01-731-3952INTERCHANGEABLE
WASHER,FLAT
CC59179-001

Frequently Asked Questions

What is NSN 5330-01-080-9229?

NSN 5330-01-080-9229 is a Seal,plain Encased, manufactured by Hme, Inc. Dba Hme Ahrens-Fox, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-01-080-9229?

NSN 5330-01-080-9229 has 3 cross-referenced part numbers: 19AS677 (Oshkosh Defense Llc), 19AS677 (Oshkosh Corp), 31577 (Hme, Inc. Dba Hme Ahrens-Fox).

What NSN replaces 5330-01-080-9229?

There is 1 known substitute for 5330-01-080-9229: 5310-01-731-3952. Verify interchangeability with system specifications before substitution.

What are the specifications of 31577?

Key specifications for 31577: Seal Width: 0.358 INCHES MINIMUM AND 0.390 INCHES MAXIMUM IN; Material: STEEL CASE; Material: RUBBER SYNTHETIC SEALING ELEMENT; Sealing Element Style: ANGULAR. 7 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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