PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

79101Seal Assembly,shaft,spring Loade

Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. · NSN 4320-01-303-1040 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-01-303-1040 — this item is cataloged by the U.S. Government under National Stock Number 4320-01-303-1040. Primary manufacturer part number: 79101.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • General Characteristics Item Description: ITEM CONSISTS OF 1 EA. SPRING HOLDER; 1 EA. SPRING; 1 EA. DRIVE RING; 1 EA. RETAINER; 1 EA. FLEXIBLE DIAPHRAGM; 1 EA. WASHER; 1 EA. O-RING; 1 EA. O-RING SEAT; SPRING AND METAL STAMPING ARE MADE OF STAINLESS STEEL; O-RING SEAT IS MADE OF NICKEL ALLOY; ELASTOMER PARTS ARE MADE OF BUNA-N
  • 3 verified cross-references
  • Primary manufacturer: Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Mechanical energy storage
  • Vibration dampening
General Description

The Seal Assembly,shaft,spring Loade, cataloged under National Stock Number 4320-01-303-1040, is classified within Federal Supply Class 4320 (No Item Name Available) of the Pumps and Compressors group. The primary manufacturer of record is Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4320-01-303-1040
Primary Part Number79101
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCrane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
StatusACTIVE
General Characteristics Item DescriptionITEM CONSISTS OF 1 EA. SPRING HOLDER; 1 EA. SPRING; 1 EA. DRIVE RING; 1 EA. RETAINER; 1 EA. FLEXIBLE DIAPHRAGM; 1 EA. WASHER; 1 EA. O-RING; 1 EA. O-RING SEAT; SPRING AND METAL STAMPING ARE MADE OF STAINLESS STEEL; O-RING SEAT IS MADE OF NICKEL ALLOY; ELASTOMER PARTS ARE MADE OF BUNA-N
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
1610-00-215-286679101 INTERCHANGEABLE
Bracket Asy
Hamilton Sundstrand Corporation Dba Collins Aerospace
5310-00-297-9084813137-1 INTERCHANGEABLE
Nut,self-Locking,spline
Lockheed Martin Corporation Div Rms - Mitchel Field
5950-00-686-9081SM-C-417151 INTERCHANGEABLE
Transformer,audio Frequency
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6625-00-814-14947910-1 INTERCHANGEABLE
Test Set Subassembly,electrical
L-3 Communications Westwood Corporation Dba Edi Division Div Tano Division
Cross-Reference Index
Part NumberManufacturer
845031B4004 Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service (USA)
79101 PRIMARY Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
BP171TYPE21 1.75 John Crane-Houdaille Inc Lapmaster Intl Div (USA)
Related Parts
1610-00-215-2866INTERCHANGEABLE
BRACKET ASY
79101
5310-00-297-9084INTERCHANGEABLE
NUT,SELF-LOCKING,SPLINE
813137-1
5950-00-686-9081INTERCHANGEABLE
TRANSFORMER,AUDIO FREQUENCY
SM-C-417151
6625-00-814-1494INTERCHANGEABLE
TEST SET SUBASSEMBLY,ELECTRICAL
7910-1

Frequently Asked Questions

What is NSN 4320-01-303-1040?

NSN 4320-01-303-1040 is a Seal Assembly,shaft,spring Loade, manufactured by Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp., classified under FSC 4320 (No Item Name Available). Status: active.

What are the part numbers for NSN 4320-01-303-1040?

NSN 4320-01-303-1040 has 3 cross-referenced part numbers: 845031B4004 (Marine Corps Systems Command Div Marine Corps Systems Command Technical Data Repository Customer Service), 79101 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.), BP171TYPE21 1.75 (John Crane-Houdaille Inc Lapmaster Intl Div).

What NSN replaces 4320-01-303-1040?

There are 4 known substitutes for 4320-01-303-1040: 1610-00-215-2866, 5310-00-297-9084, 5950-00-686-9081 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 79101?

Key specifications for 79101: End Item Identification: FUEL DISPENSING SYSTEM, TACT AIRFLD (3ID)(M1966). SHIPBOARD MATERIAL HANDLING EQUIPMENT (MHE). FUEL SYSTEM AMPHIBIOUS ASSULT 600,000 GAL CAP (3ID).; General Characteristics Item Description: ITEM CONSISTS OF 1 EA. SPRING HOLDER; 1 EA. SPRING; 1 EA. DRIVE RING; 1 EA. RETAINER; 1 EA. FLEXIBLE DIAPHRAGM; 1 EA. WASHER; 1 EA. O-RING; 1 EA. O-RING SEAT; SPRING AND METAL STAMPING ARE MADE OF STAINLESS STEEL; O-RING SEAT IS MADE OF NICKEL ALLOY; ELASTOMER PARTS ARE MADE OF BUNA-N. 2 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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