PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

50-317Seal,plain Encased

Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. · NSN 5330-00-579-1285 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-579-1285 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-579-1285. Primary manufacturer part number: 50-317.
Features
  • Seal,plain Encased — FSC 5330
  • Accommodated Shaft Maximum Rated Speed: 3600 FEET PER MINUTE FT
  • Material: STEEL CASE
  • Accommodated Shaft Diameter: 0.625 INCHES NOMINAL IN
  • Housing Bore Diameter: 1.124 INCHES NOMINAL IN
  • Seal Width: 0.312 INCHES NOMINAL IN
  • Case Style: SQUARE
  • Surface Treatment: CADMIUM CASE
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 5330-00-579-1285, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 10 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-579-1285
Primary Part Number50-317
Item NameSeal,plain Encased
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerCrane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
StatusACTIVE
Accommodated Shaft Maximum Rated Speed3600 FEET PER MINUTE FT
MaterialSTEEL CASE
Accommodated Shaft Diameter0.625 INCHES NOMINAL IN
Housing Bore Diameter1.124 INCHES NOMINAL IN
Seal Width0.312 INCHES NOMINAL IN
Case StyleSQUARE
Surface TreatmentCADMIUM CASE
Sealing Element StyleANGULAR
MaterialRUBBER SYNTHETIC SEALING ELEMENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
2930-00-120-01148317R INTERCHANGEABLE
Pump,cooling System,engine
Elgin Industries Inc. Dba
6115-00-376-69856903 INTERCHANGEABLE
Generator Set,diesel Engine
Rolls-Royce Solutions America Inc
3439-00-401-1373 INTERCHANGEABLE
Handle,electric Soldering Iron
5950-00-421-0800 INTERCHANGEABLE
Transformer,power
6150-00-463-731610-321695-1 INTERCHANGEABLE
Cable Assembly,special Purpose,e
Unison Industries Llc
5360-00-597-41531916542 INTERCHANGEABLE
Spring,helical,torsion
Borgwarner Pds (anderson), L.l.c.
3040-00-600-2698SC-B-69594 INTERCHANGEABLE
Cam,control
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6130-00-660-8420PP1765URN INTERCHANGEABLE
Power Supply
Joint Electronics Type Designation System
5840-00-735-92495031-7 INTERCHANGEABLE
Diode Board Assy
Raytheon Company Div Rmd Strategic
5950-00-753-8859S87790 INTERCHANGEABLE
Transformer,audio Frequency
Magnetika Inc Div Magnetika/phillipsburg Location
Cross-Reference Index
Part NumberManufacturer
411627-01-AR Airfloat/hsi Systems Inc (USA)
1942960 Naval Ship Systems Command (USA)
50-317 PRIMARY Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
CA2580 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
6903 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
112H20Q6 Skf Usa Inc. Dba Skf Aerospace Sealing Solutions (USA)
S30571 Amz Alabama Inc. (USA)
411627-01-AR Reliance Electric (USA)
00044 Defense Logistics Agency Dba Defense Supply Center Philadelphia (USA)
S30571 Bae Systems Land & Armaments L.p. (USA)
Related Parts
2930-00-120-0114INTERCHANGEABLE
PUMP,COOLING SYSTEM,ENGINE
8317R
6115-00-376-6985INTERCHANGEABLE
GENERATOR SET,DIESEL ENGINE
6903
3439-00-401-1373INTERCHANGEABLE
HANDLE,ELECTRIC SOLDERING IRON
5950-00-421-0800INTERCHANGEABLE
TRANSFORMER,POWER
6150-00-463-7316INTERCHANGEABLE
CABLE ASSEMBLY,SPECIAL PURPOSE,E
10-321695-1
5360-00-597-4153INTERCHANGEABLE
SPRING,HELICAL,TORSION
1916542
3040-00-600-2698INTERCHANGEABLE
CAM,CONTROL
SC-B-69594
6130-00-660-8420INTERCHANGEABLE
POWER SUPPLY
PP1765URN
5840-00-735-9249INTERCHANGEABLE
DIODE BOARD ASSY
5031-7
5950-00-753-8859INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
S87790
5950-00-789-9415INTERCHANGEABLE
REACTOR
27C54
6680-00-795-1605INTERCHANGEABLE
SHAFT TACHOMETER DR
19266

Frequently Asked Questions

What is NSN 5330-00-579-1285?

NSN 5330-00-579-1285 is a Seal,plain Encased, manufactured by Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp., classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-579-1285?

NSN 5330-00-579-1285 has 10 cross-referenced part numbers: 411627-01-AR (Airfloat/hsi Systems Inc), 1942960 (Naval Ship Systems Command), 50-317 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.), CA2580 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions), 6903 (Skf Usa Inc. Dba Skf Aerospace Sealing Solutions) and 5 more.

What NSN replaces 5330-00-579-1285?

There are 12 known substitutes for 5330-00-579-1285: 2930-00-120-0114, 6115-00-376-6985, 3439-00-401-1373 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 50-317?

Key specifications for 50-317: Accommodated Shaft Maximum Rated Speed: 3600 FEET PER MINUTE FT; Material: STEEL CASE; Accommodated Shaft Diameter: 0.625 INCHES NOMINAL IN; Housing Bore Diameter: 1.124 INCHES NOMINAL IN. 9 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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