PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

37952PCBM31Gasket

Stone Safety Corp · NSN 5330-00-254-9944 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-254-9944 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-254-9944. Primary manufacturer part number: 37952PCBM31.
Features
  • Gasket — FSC 5330
  • Aperture Length: 5.125 INCHES NOMINAL IN
  • Style Designator: NON-CIRCULAR
  • Outside Edge to Bolt Hole Center Distance Along Length: 0.500 INCHES NOMINAL IN
  • Cross-Sectional Thickness: 0.250 INCHES NOMINAL IN
  • Aperture Width: 3.500 INCHES NOMINAL IN
  • Hardness Rating: 50.0 SHORE DUROMETER A MAXIMUM OVERALL
  • Bolt Hole Quantity: 4
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Butadiene-Acrylonitrile Class Nbr Overall construction
General Description

The Gasket, cataloged under National Stock Number 5330-00-254-9944, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Stone Safety Corp. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-254-9944
Primary Part Number37952PCBM31
Item NameGasket
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerStone Safety Corp
StatusACTIVE
Aperture Length5.125 INCHES NOMINAL IN
Style DesignatorNON-CIRCULAR
Outside Edge to Bolt Hole Center Distance Along Length0.500 INCHES NOMINAL IN
Cross-Sectional Thickness0.250 INCHES NOMINAL IN
Aperture Width3.500 INCHES NOMINAL IN
Hardness Rating50.0 SHORE DUROMETER A MAXIMUM OVERALL
Bolt Hole Quantity4
Hole Diameter0.344 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
Outside Edge to Bolt Hole Center Distance Along Width0.500 INCHES NOMINAL IN
Material Document and ClassificationMIL-R-15624 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
MaterialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR OVERALL
Cross-Sectional Shape StyleSOLID SINGLE OR COMPOSITION
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 9
5210-00-221-1929436.1MXRL-25 INTERCHANGEABLE
Caliper,micrometer,outside
L.s. Starrett Company (the) Div Tool Division
2815-00-459-596930553 INTERCHANGEABLE
Insert,engine Valve Seat
Safeguard Powertech Systems
5325-00-932-2131D00492001 INTERCHANGEABLE
Grommet,nonmetallic
Siemens Energy and Automation Inc Siemens Furnas Controls Div
3020-01-198-09433055-3 INTERCHANGEABLE
Gear Cluster
Eaton Aerospace Llc Sterer Engineering Morgan Actuators
5935-01-281-4101 INTERCHANGEABLE
Connector,receptacle,electrical
5310-01-558-993303333-12 INTERCHANGEABLE
Washer,lock
Defense Logistics Agency Dba Defense Supply Center Philadelphia
5340-01-616-4958379-40 INTERCHANGEABLE
Clamp,loop
Rix Industries
2935-01-652-1441 INTERCHANGEABLE
Manifold,fluid Cooler
2910-01-689-833730553 INTERCHANGEABLE
Head,fluid Filter
Separ of the Americas, Llc Dba Separ, Losing Filtertek Div Separ Filter
Cross-Reference Index
Part NumberManufacturer
37952PCBM31 Stone Safety Corp (USA)
475-2000-519203PCBM31 Naval Ship Systems Command (USA)
35135PCBM31 Stone Safety Corp (USA)
475-2000-519204PCBM31 Naval Ship Systems Command (USA)
381-2200-68093PCBM31 Naval Ship Systems Command (USA)
35130PCBM31 Stone Safety Corp (USA)
30553 Stone Safety Corp (USA)
37940 Stone Safety Corp (USA)
37953PCBM31 Stone Safety Corp (USA)
Related Parts
5210-00-221-1929INTERCHANGEABLE
CALIPER,MICROMETER,OUTSIDE
436.1MXRL-25
2815-00-459-5969INTERCHANGEABLE
INSERT,ENGINE VALVE SEAT
30553
5325-00-932-2131INTERCHANGEABLE
GROMMET,NONMETALLIC
D00492001
3020-01-198-0943INTERCHANGEABLE
GEAR CLUSTER
3055-3
5935-01-281-4101INTERCHANGEABLE
CONNECTOR,RECEPTACLE,ELECTRICAL
5310-01-558-9933INTERCHANGEABLE
WASHER,LOCK
03333-12
5340-01-616-4958INTERCHANGEABLE
CLAMP,LOOP
379-40
2935-01-652-1441INTERCHANGEABLE
MANIFOLD,FLUID COOLER
2910-01-689-8337INTERCHANGEABLE
HEAD,FLUID FILTER
30553

Frequently Asked Questions

What is NSN 5330-00-254-9944?

NSN 5330-00-254-9944 is a Gasket, manufactured by Stone Safety Corp, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-254-9944?

NSN 5330-00-254-9944 has 9 cross-referenced part numbers: 37952PCBM31 (Stone Safety Corp), 475-2000-519203PCBM31 (Naval Ship Systems Command), 35135PCBM31 (Stone Safety Corp), 475-2000-519204PCBM31 (Naval Ship Systems Command), 381-2200-68093PCBM31 (Naval Ship Systems Command) and 4 more.

What NSN replaces 5330-00-254-9944?

There are 9 known substitutes for 5330-00-254-9944: 5210-00-221-1929, 2815-00-459-5969, 5325-00-932-2131 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 37952PCBM31?

Key specifications for 37952PCBM31: Aperture Length: 5.125 INCHES NOMINAL IN; Style Designator: NON-CIRCULAR; Outside Edge to Bolt Hole Center Distance Along Length: 0.500 INCHES NOMINAL IN; Cross-Sectional Thickness: 0.250 INCHES NOMINAL IN. 14 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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