PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

D956Seal,plain Encased

Reliance Comm/tec Corp Lorain Products Div · NSN 5330-00-352-5902 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-352-5902 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-352-5902. Primary manufacturer part number: D956.
Features
  • Seal,plain Encased — FSC 5330
  • Seal Width: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
  • Sealing Element Style: VERTICAL-EXTERNAL
  • Accommodated Shaft Diameter: 6.242 INCHES MINIMUM AND 6.246 INCHES MAXIMUM IN
  • Material: RUBBER SYNTHETIC SEALING ELEMENT B
  • Material: RUBBER SYNTHETIC SEALING ELEMENT A
  • Case Style: SQUARE
  • Housing Bore Diameter: 7.125 INCHES NOMINAL IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic Sealing Element B construction
General Description

The Seal,plain Encased, cataloged under National Stock Number 5330-00-352-5902, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Reliance Comm/tec Corp Lorain Products Div. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5330-00-352-5902
Primary Part NumberD956
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerReliance Comm/tec Corp Lorain Products Div
StatusCANCELLED
Seal Width0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN
Sealing Element StyleVERTICAL-EXTERNAL
Accommodated Shaft Diameter6.242 INCHES MINIMUM AND 6.246 INCHES MAXIMUM IN
MaterialRUBBER SYNTHETIC SEALING ELEMENT B
MaterialRUBBER SYNTHETIC SEALING ELEMENT A
Case StyleSQUARE
Housing Bore Diameter7.125 INCHES NOMINAL IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
2540-00-136-8754 INTERCHANGEABLE
Seat,vehicular
4820-00-689-1204D956 INTERCHANGEABLE
Valve,regulating,temperature
Insinger Machine Co
Cross-Reference Index
Part NumberManufacturer
D956 Reliance Comm/tec Corp Lorain Products Div (USA)
3215116 Eagle-Picher Industries Inc Ohio Rubber Co Div (USA)
D956 Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co (USA)
D956 Minnpar, Llc Dba Minnpar (USA)
D956 Koehring Co Lorain Div (USA)
Related Parts
2540-00-136-8754INTERCHANGEABLE
SEAT,VEHICULAR
4820-00-689-1204INTERCHANGEABLE
VALVE,REGULATING,TEMPERATURE
D956

Frequently Asked Questions

What is NSN 5330-00-352-5902?

NSN 5330-00-352-5902 is a Seal,plain Encased, manufactured by Reliance Comm/tec Corp Lorain Products Div, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-352-5902?

NSN 5330-00-352-5902 has 5 cross-referenced part numbers: D956 (Reliance Comm/tec Corp Lorain Products Div), 3215116 (Eagle-Picher Industries Inc Ohio Rubber Co Div), D956 (Koehring Cranes and Excavators Inc Sub of Northwest Engineering Co), D956 (Minnpar, Llc Dba Minnpar), D956 (Koehring Co Lorain Div).

What NSN replaces 5330-00-352-5902?

There are 2 known substitutes for 5330-00-352-5902: 2540-00-136-8754, 4820-00-689-1204. Verify interchangeability with system specifications before substitution.

What are the specifications of D956?

Key specifications for D956: Seal Width: 0.620 INCHES MINIMUM AND 0.630 INCHES MAXIMUM IN; Sealing Element Style: VERTICAL-EXTERNAL; Accommodated Shaft Diameter: 6.242 INCHES MINIMUM AND 6.246 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC SEALING ELEMENT B. 7 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-352-5902 still in active supply?

NSN 5330-00-352-5902 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.
PartsTable Design LLC · partstable.com