PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

58-908-30O-Ring

Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok · NSN 5331-01-097-2778 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-097-2778 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-097-2778. Primary manufacturer part number: 58-908-30.
Features
  • O-Ring — FSC 5331
  • Departure From Cited Document: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
  • Cross-Sectional Height: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
  • Material: RUBBER FLUOROCARBON CLASS FPM
  • Center Hole Diameter: 0.635 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN
  • Hardness Rating: 85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM
  • Material Document and Classification: MIL-R-83248 MIL SPEC SINGLE MATERIAL RESPONSE
  • Criticality Code Justification: ZZZW
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Fluorocarbon Class Fpm construction
General Description

The O-Ring, cataloged under National Stock Number 5331-01-097-2778, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 9 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5331-01-097-2778
Primary Part Number58-908-30
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerCircor Instrumentation Technologies, Inc. Dba Hoke Gyrolok
StatusCANCELLED
Departure From Cited DocumentCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
Cross-Sectional Height0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
MaterialRUBBER FLUOROCARBON CLASS FPM
Center Hole Diameter0.635 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN
Hardness Rating85.0 SHORE DUROMETER A MINIMUM AND 95.0 SHORE DUROMETER A MAXIMUM
Material Document and ClassificationMIL-R-83248 MIL SPEC SINGLE MATERIAL RESPONSE
Criticality Code JustificationZZZW
Elongation Percentage125 MAXIMUM
Nondefinitive Spec/std Data1 TYPE AND 2 CLASS
Temp Rating-30.0 FAHRENHEIT AND 500.0 FAHRENHEIT DEGF
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
5331-00-167-5173AS3581-908 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5330-01-267-3793 INTERCHANGEABLE
Packing,preformed
5331-01-417-9652 INTERCHANGEABLE
O-Ring
5331-01-497-4164AS3581-908 INTERCHANGEABLE
O-Ring
Rolls Royce Corp
5331-01-540-0866 INTERCHANGEABLE
O-Ring
5331-01-542-4571 INTERCHANGEABLE
O-Ring
5331-01-606-7326M83248/2-908 INTERCHANGEABLE
O-Ring
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
M83248-2-908CP Naval Inventory Control Point Mechanicsburg (USA)
63020 ITEM 14 Eaton Aerospace Llc Dba Eaton Aerospace Jackson (USA)
63020 ITEM 14CP Naval Inventory Control Point Mechanicsburg (USA)
SF10914 REV B PC31 Circor Pumps North America Llc (USA)
283467-0002 ITEM 60CP Marotta Controls Inc (USA)
3423-3001-1 ITE Carleton Technologies Inc Div Tampa Facility (USA)
5331PL0821061 Jednolity Indeks Materialowy - Uniform Material Index (POL)
M83248-2-908 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
3423-4001 ITEM Naval Inventory Control Point Mechanicsburg (USA)
3334846PC5 Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA)
58-908-30 PRIMARY Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok (USA)
Related Parts
5331-00-167-5173INTERCHANGEABLE
O-RING
AS3581-908
5330-01-267-3793INTERCHANGEABLE
PACKING,PREFORMED
5331-01-417-9652INTERCHANGEABLE
O-RING
5331-01-497-4164INTERCHANGEABLE
O-RING
AS3581-908
5331-01-540-0866INTERCHANGEABLE
O-RING
5331-01-542-4571INTERCHANGEABLE
O-RING
5331-01-606-7326INTERCHANGEABLE
O-RING
M83248/2-908

Frequently Asked Questions

What is NSN 5331-01-097-2778?

NSN 5331-01-097-2778 is a O-Ring, manufactured by Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-01-097-2778?

NSN 5331-01-097-2778 has 11 cross-referenced part numbers: M83248-2-908CP (Naval Inventory Control Point Mechanicsburg), 63020 ITEM 14 (Eaton Aerospace Llc Dba Eaton Aerospace Jackson), 63020 ITEM 14CP (Naval Inventory Control Point Mechanicsburg), SF10914 REV B PC31 (Circor Pumps North America Llc), 283467-0002 ITEM 60CP (Marotta Controls Inc) and 6 more.

What NSN replaces 5331-01-097-2778?

There are 7 known substitutes for 5331-01-097-2778: 5331-00-167-5173, 5330-01-267-3793, 5331-01-417-9652 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 58-908-30?

Key specifications for 58-908-30: Departure From Cited Document: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D; Cross-Sectional Height: 0.084 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN; Material: RUBBER FLUOROCARBON CLASS FPM; Center Hole Diameter: 0.635 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5331-01-097-2778 still in active supply?

NSN 5331-01-097-2778 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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