PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

012703Seal Assembly,shaft,spring Loade

Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. · NSN 4320-00-627-4731 · FSC 4320 · No Item Name Available
Verified by PartsTable
NSN 4320-00-627-4731 — this item is cataloged by the U.S. Government under National Stock Number 4320-00-627-4731. Primary manufacturer part number: 012703.
Features
  • Seal Assembly,shaft,spring Loade — FSC 4320
  • General Characteristics Item Description: 1.250 IN. OD; 0.625 IN. ID; 1.219 IN. LG; 0.344 DP; C/O SYNTHETIC RUBER RING 2; PROCELAIN RING 1; SYNTHETIC RUBBER SPRING MOUNTED SEAL1; ROTATING ACE 1,METAL GRPAHITIC PLASTIC PATS IN
  • 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 4320-00-627-4731, 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 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN4320-00-627-4731
Primary Part Number012703
Item NameSeal Assembly,shaft,spring Loade
FSC / FSG4320 / 43 — No Item Name Available
ManufacturerCrane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.
StatusCANCELLED
General Characteristics Item Description1.250 IN. OD; 0.625 IN. ID; 1.219 IN. LG; 0.344 DP; C/O SYNTHETIC RUBER RING 2; PROCELAIN RING 1; SYNTHETIC RUBBER SPRING MOUNTED SEAL1; ROTATING ACE 1,METAL GRPAHITIC PLASTIC PATS IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3020-00-244-0306140RL INTERCHANGEABLE
Link,roller Chain
Jeffrey Co the
1650-00-254-49871270-3 INTERCHANGEABLE
Servocylinder
Hawker Pacific Aerospace
6620-00-321-013412703 INTERCHANGEABLE
Insert,floating Control
Honeywell International Inc. Div Aerospace - Torrance
5961-00-556-2091 INTERCHANGEABLE
Semiconductor Device,diode
2915-00-694-918412-703 INTERCHANGEABLE
Impeller
Ontic Engineering & Manufacturing, Inc Dba Ontic Us
5340-00-984-570712703 INTERCHANGEABLE
Disk,solid,plain
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
5133-00-988-5692 INTERCHANGEABLE
Drill,twist
5935-01-033-5274 INTERCHANGEABLE
Plug,telephone
5950-01-058-9289 INTERCHANGEABLE
Transformer,power
1650-01-060-859735582 INTERCHANGEABLE
Filter Element,fluid
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
Cross-Reference Index
Part NumberManufacturer
35582 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
12703 Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
012703 PRIMARY Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp. (USA)
Related Parts
3020-00-244-0306INTERCHANGEABLE
LINK,ROLLER CHAIN
140RL
1650-00-254-4987INTERCHANGEABLE
SERVOCYLINDER
1270-3
6620-00-321-0134INTERCHANGEABLE
INSERT,FLOATING CONTROL
12703
5961-00-556-2091INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
2915-00-694-9184INTERCHANGEABLE
IMPELLER
12-703
5340-00-984-5707INTERCHANGEABLE
DISK,SOLID,PLAIN
12703
5133-00-988-5692INTERCHANGEABLE
DRILL,TWIST
5935-01-033-5274INTERCHANGEABLE
PLUG,TELEPHONE
5950-01-058-9289INTERCHANGEABLE
TRANSFORMER,POWER
1650-01-060-8597INTERCHANGEABLE
FILTER ELEMENT,FLUID
35582
5930-01-341-4652INTERCHANGEABLE
SWITCH,FLOW
35582
6520-01-381-8511INTERCHANGEABLE
BUR,DENTAL,EXCAVATING
12703

Frequently Asked Questions

What is NSN 4320-00-627-4731?

NSN 4320-00-627-4731 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: cancelled.

What are the part numbers for NSN 4320-00-627-4731?

NSN 4320-00-627-4731 has 3 cross-referenced part numbers: 35582 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.), 12703 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.), 012703 (Crane Pumps & Systems Pft Corp Div Crane Pumps & System Pft Corp.).

What NSN replaces 4320-00-627-4731?

There are 12 known substitutes for 4320-00-627-4731: 3020-00-244-0306, 1650-00-254-4987, 6620-00-321-0134 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 012703?

Key specifications for 012703: General Characteristics Item Description: 1.250 IN. OD; 0.625 IN. ID; 1.219 IN. LG; 0.344 DP; C/O SYNTHETIC RUBER RING 2; PROCELAIN RING 1; SYNTHETIC RUBBER SPRING MOUNTED SEAL1; ROTATING ACE 1,METAL GRPAHITIC PLASTIC PATS IN. 1 total characteristics are documented in the Federal Logistics Information System.

Is NSN 4320-00-627-4731 still in active supply?

NSN 4320-00-627-4731 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.
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