PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12857-2Seal Spacer

Hexco International Dba Acd · NSN 4730-01-224-5453 · FSC 4730 · No Item Name Available
Verified by PartsTable
NSN 4730-01-224-5453 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-224-5453. Primary manufacturer part number: 12857-2.
Features
  • Seal Spacer — FSC 4730
  • Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
  • Criticality Code Justification: ZZZY
  • 4 verified cross-references
  • Primary manufacturer: Hexco International Dba Acd
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The Seal Spacer, cataloged under National Stock Number 4730-01-224-5453, is classified within Federal Supply Class 4730 (No Item Name Available) of the Pipe, Tubing, Hose, and Fittings group. The primary manufacturer of record is Hexco International Dba Acd. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN4730-01-224-5453
Primary Part Number12857-2
Item NameSeal Spacer
FSC / FSG4730 / 47 — No Item Name Available
ManufacturerHexco International Dba Acd
StatusACTIVE
Reference Number Differentiating CharacteristicsCLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D
Criticality Code JustificationZZZY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 8
2810-00-118-836312857 INTERCHANGEABLE
Plug
Pratt & Whitney Canada Corp Div Pratt & Whitney Canada Corp.
4730-00-200-0257SAE J530 6-4 130139B INTERCHANGEABLE
Reducer,pipe
Sae International Dba Sae International
5110-00-203-4730 INTERCHANGEABLE
File,hand
5360-00-446-337512857 INTERCHANGEABLE
Spring,helical,compression
Leslie Controls, Inc. Dba Leslie Controls Inc
6140-01-073-490716624 INTERCHANGEABLE
Battery,storage
Saft America Inc. Dba Tadiran Batteries Div Aviation Division
5330-01-119-5821128572 INTERCHANGEABLE
Gasket
Lake Shore Systems, Inc.
4320-01-194-2966H12857 INTERCHANGEABLE
Gear Rotor Set,rotary Pump
Meggitt Defense Systems, Inc. Dba Meggitt Defense Systems Inc
2010-01-681-5066128572 INTERCHANGEABLE
Bushing,propeller,marine
Brp Us Inc
Cross-Reference Index
Part NumberManufacturer
12857-2 Hexco International Dba Acd (USA)
12857 Hexco International Dba Acd (USA)
12857 Provision, Inc. Dba Provision Inc (USA)
12857CP Naval Inventory Control Point Mechanicsburg (USA)
Related Parts
2810-00-118-8363INTERCHANGEABLE
PLUG
12857
4730-00-200-0257INTERCHANGEABLE
REDUCER,PIPE
SAE J530 6-4 130139B
5110-00-203-4730INTERCHANGEABLE
FILE,HAND
5360-00-446-3375INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
12857
6140-01-073-4907INTERCHANGEABLE
BATTERY,STORAGE
16624
5330-01-119-5821INTERCHANGEABLE
GASKET
128572
4320-01-194-2966INTERCHANGEABLE
GEAR ROTOR SET,ROTARY PUMP
H12857
2010-01-681-5066INTERCHANGEABLE
BUSHING,PROPELLER,MARINE
128572

Frequently Asked Questions

What is NSN 4730-01-224-5453?

NSN 4730-01-224-5453 is a Seal Spacer, manufactured by Hexco International Dba Acd, classified under FSC 4730 (No Item Name Available). Status: active.

What are the part numbers for NSN 4730-01-224-5453?

NSN 4730-01-224-5453 has 4 cross-referenced part numbers: 12857-2 (Hexco International Dba Acd), 12857 (Hexco International Dba Acd), 12857 (Provision, Inc. Dba Provision Inc), 12857CP (Naval Inventory Control Point Mechanicsburg).

What NSN replaces 4730-01-224-5453?

There are 8 known substitutes for 4730-01-224-5453: 2810-00-118-8363, 4730-00-200-0257, 5110-00-203-4730 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 12857-2?

Key specifications for 12857-2: Reference Number Differentiating Characteristics: CLEANING, PACKAGING, AND MARKING IAW MIL-STD-1330D; Criticality Code Justification: ZZZY. 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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