PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10703Seal Ring,metal

Pacific Piston Ring Co Inc · NSN 5330-00-318-8443 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-318-8443 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-318-8443. Primary manufacturer part number: 10703.
Features
  • Seal Ring,metal — FSC 5330
  • Radial Wall Thickness: 0.1580 INCHES MINIMUM AND 0.1650 INCHES MAXIMUM IN
  • Outside Diameter: 3.340 INCHES NOMINAL IN
  • Surface Treatment: PASSIVATE OVERALL
  • Material: COPPER ALLOY AND STEEL CORROSION RESISTING OVERALL
  • FSC Application Data: SERVOCYLINDER,HYDRAULIC,ACFT
  • Ring Style: EXPANDING CONCENTRIC
  • Joint Style: INTERLOCKING JOINT
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Copper Alloy and Steel Corrosion Resisting Overall construction
General Description

The Seal Ring,metal, cataloged under National Stock Number 5330-00-318-8443, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Pacific Piston Ring Co Inc. Government technical data includes 8 verified specifications, 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. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-318-8443
Primary Part Number10703
Item NameSeal Ring,metal
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerPacific Piston Ring Co Inc
StatusACTIVE
Radial Wall Thickness0.1580 INCHES MINIMUM AND 0.1650 INCHES MAXIMUM IN
Outside Diameter3.340 INCHES NOMINAL IN
Surface TreatmentPASSIVATE OVERALL
MaterialCOPPER ALLOY AND STEEL CORROSION RESISTING OVERALL
FSC Application DataSERVOCYLINDER,HYDRAULIC,ACFT
Ring StyleEXPANDING CONCENTRIC
Joint StyleINTERLOCKING JOINT
Cross-Sectional Shape StylePLAIN RECTANGULAR, THREE PIECE, STRAIGHT FACE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 10
5965-00-023-0932 INTERCHANGEABLE
Microphone,dynamic
1560-00-245-892010703 INTERCHANGEABLE
Bracket Assembly,ai
Piper Industrial Manufacturing Company, Llc Div Piper Industrial Manufacturing Company
3120-00-287-7399F309-2 INTERCHANGEABLE
Bearing,sleeve
Chrysler Corp Amplex Div
6675-01-105-5756 INTERCHANGEABLE
Survey Section,topo
2530-01-167-1999 INTERCHANGEABLE
Push Rod,hydraulic Brake Master
5310-01-192-050610703 INTERCHANGEABLE
Washer,sewing Machine
Consolidated Sewing Machine Corp
6130-01-253-1032034370 INTERCHANGEABLE
Inverter,power,static
Rotron Incorporated
2805-01-273-130910703 INTERCHANGEABLE
Ring,piston
Liftking Manufacturing Corp
5360-01-436-996910703 INTERCHANGEABLE
Spring,helical,compression
Matthew Warren, Inc. Dba Century Spring Corp. Div Century Spring Corp.
5985-01-447-236910703 INTERCHANGEABLE
Antenna
Universal Avionics Systems Corp
Cross-Reference Index
Part NumberManufacturer
10703 PRIMARY Pacific Piston Ring Co Inc (USA)
232135-501 Honeywell International Inc. Div Aerospace - Torrance (USA)
232135-501 Moog Military Aircraft Llc (USA)
Related Parts
5965-00-023-0932INTERCHANGEABLE
MICROPHONE,DYNAMIC
1560-00-245-8920INTERCHANGEABLE
BRACKET ASSEMBLY,AI
10703
3120-00-287-7399INTERCHANGEABLE
BEARING,SLEEVE
F309-2
6675-01-105-5756INTERCHANGEABLE
SURVEY SECTION,TOPO
2530-01-167-1999INTERCHANGEABLE
PUSH ROD,HYDRAULIC BRAKE MASTER
5310-01-192-0506INTERCHANGEABLE
WASHER,SEWING MACHINE
10703
6130-01-253-1032INTERCHANGEABLE
INVERTER,POWER,STATIC
034370
2805-01-273-1309INTERCHANGEABLE
RING,PISTON
10703
5360-01-436-9969INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
10703
5985-01-447-2369INTERCHANGEABLE
ANTENNA
10703

Frequently Asked Questions

What is NSN 5330-00-318-8443?

NSN 5330-00-318-8443 is a Seal Ring,metal, manufactured by Pacific Piston Ring Co Inc, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-318-8443?

NSN 5330-00-318-8443 has 3 cross-referenced part numbers: 10703 (Pacific Piston Ring Co Inc), 232135-501 (Honeywell International Inc. Div Aerospace - Torrance), 232135-501 (Moog Military Aircraft Llc).

What NSN replaces 5330-00-318-8443?

There are 10 known substitutes for 5330-00-318-8443: 5965-00-023-0932, 1560-00-245-8920, 3120-00-287-7399 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 10703?

Key specifications for 10703: Radial Wall Thickness: 0.1580 INCHES MINIMUM AND 0.1650 INCHES MAXIMUM IN; Outside Diameter: 3.340 INCHES NOMINAL IN; Surface Treatment: PASSIVATE OVERALL; Material: COPPER ALLOY AND STEEL CORROSION RESISTING OVERALL. 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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