PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50B70037O-Ring

Anchor Seals Incorporated Div Asi Corporate · NSN 5331-00-205-3818 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-205-3818 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-205-3818. Primary manufacturer part number: 50B70037.
Features
  • O-Ring — FSC 5331
  • Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
  • Material: RUBBER SYNTHETIC
  • Center Hole Diameter: 2.479 INCHES MINIMUM AND 2.499 INCHES MAXIMUM IN
  • 5 verified cross-references
  • Primary manufacturer: Anchor Seals Incorporated Div Asi Corporate
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-205-3818, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Anchor Seals Incorporated Div Asi Corporate. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-00-205-3818
Primary Part Number50B70037
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerAnchor Seals Incorporated Div Asi Corporate
StatusACTIVE
Cross-Sectional Height0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN
MaterialRUBBER SYNTHETIC
Center Hole Diameter2.479 INCHES MINIMUM AND 2.499 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
4730-00-712-057014-02-1301PC5-2IN INTERCHANGEABLE
Strainer Element,sediment
Electric Boat Corporation Div General Dynamics Electric Boat
4730-00-719-2708SAE J530 2-2-2 130438B INTERCHANGEABLE
Tee,pipe
Sae International Dba Sae International
5120-00-900-6103 INTERCHANGEABLE
Hammer,hand
5950-00-965-7605 INTERCHANGEABLE
Transformer,power Autotransforme
5310-01-271-93243473P INTERCHANGEABLE
Nut,plain,castellated,hexagon
Curtiss-Wright Electro-Mechanical Corporation Div Epd
5315-01-371-85676509886 INTERCHANGEABLE
Pin,grooved,headless
Naval Sea Systems Command
Cross-Reference Index
Part NumberManufacturer
232-1320 Schreck Industries Inc (USA)
11-037 Zf Industrieantriebe Witten Gmbh (DEU)
11-037-7505 Anchor Seals Incorporated Div Asi Corporate (USA)
50B70037 PRIMARY Anchor Seals Incorporated Div Asi Corporate (USA)
11-037-4200-70 Strohmeyer, Julie a. Dba Julie a. Strohmeyer (USA)
Related Parts
4730-00-712-0570INTERCHANGEABLE
STRAINER ELEMENT,SEDIMENT
14-02-1301PC5-2IN
4730-00-719-2708INTERCHANGEABLE
TEE,PIPE
SAE J530 2-2-2 130438B
5120-00-900-6103INTERCHANGEABLE
HAMMER,HAND
5950-00-965-7605INTERCHANGEABLE
TRANSFORMER,POWER AUTOTRANSFORME
5310-01-271-9324INTERCHANGEABLE
NUT,PLAIN,CASTELLATED,HEXAGON
3473P
5315-01-371-8567INTERCHANGEABLE
PIN,GROOVED,HEADLESS
6509886

Frequently Asked Questions

What is NSN 5331-00-205-3818?

NSN 5331-00-205-3818 is a O-Ring, manufactured by Anchor Seals Incorporated Div Asi Corporate, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-205-3818?

NSN 5331-00-205-3818 has 5 cross-referenced part numbers: 232-1320 (Schreck Industries Inc), 11-037 (Zf Industrieantriebe Witten Gmbh), 11-037-7505 (Anchor Seals Incorporated Div Asi Corporate), 50B70037 (Anchor Seals Incorporated Div Asi Corporate), 11-037-4200-70 (Strohmeyer, Julie a. Dba Julie a. Strohmeyer).

What NSN replaces 5331-00-205-3818?

There are 6 known substitutes for 5331-00-205-3818: 4730-00-712-0570, 4730-00-719-2708, 5120-00-900-6103 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50B70037?

Key specifications for 50B70037: Cross-Sectional Height: 0.067 INCHES MINIMUM AND 0.073 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC; Center Hole Diameter: 2.479 INCHES MINIMUM AND 2.499 INCHES MAXIMUM IN. 3 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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