PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

12A053-29Seal Ring,metal

Arkwin Industries, Inc. Dba Arkwin Industries Inc · NSN 5330-00-558-2518 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-558-2518 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-558-2518. Primary manufacturer part number: 12A053-29.
Features
  • Seal Ring,metal — FSC 5330
  • Joint Style: STEP JOINT
  • FSC Application Data: CYLINDER,AIRCRAFT HYDRAULIC SYSTEM
  • Material: COPPER ALLOY OVERALL
  • Ring Style: CONTRACTING CONCENTRIC
  • Cross-Sectional Shape Style: PLAIN RECTANGULAR, TWO PIECE, STRAIGHT FACE
  • Inside Diameter: 1.314 INCHES MINIMUM AND 1.324 INCHES MAXIMUM IN
  • Radial Wall Thickness: 0.0530 INCHES MINIMUM AND 0.0580 INCHES MAXIMUM IN
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Copper Alloy Overall construction
General Description

The Seal Ring,metal, cataloged under National Stock Number 5330-00-558-2518, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Arkwin Industries, Inc. Dba Arkwin Industries Inc. Government technical data includes 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5330-00-558-2518
Primary Part Number12A053-29
Item NameSeal Ring,metal
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerArkwin Industries, Inc. Dba Arkwin Industries Inc
StatusACTIVE
Joint StyleSTEP JOINT
FSC Application DataCYLINDER,AIRCRAFT HYDRAULIC SYSTEM
MaterialCOPPER ALLOY OVERALL
Ring StyleCONTRACTING CONCENTRIC
Cross-Sectional Shape StylePLAIN RECTANGULAR, TWO PIECE, STRAIGHT FACE
Inside Diameter1.314 INCHES MINIMUM AND 1.324 INCHES MAXIMUM IN
Radial Wall Thickness0.0530 INCHES MINIMUM AND 0.0580 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
3040-00-374-2127 INTERCHANGEABLE
Shaft,straight
5330-00-924-850865-301 INTERCHANGEABLE
Gasket
Parker-Hannifin Corporation Dba Pneutronics Div Chomerics Division
4820-01-251-5524A65301 INTERCHANGEABLE
Valve,plug
Leslie Controls, Inc. Dba Leslie Controls Inc
Cross-Reference Index
Part NumberManufacturer
12A053-29 PRIMARY Arkwin Industries, Inc. Dba Arkwin Industries Inc (USA)
65301 Kaydon Ring & Seal Inc Dba Skf Precision Technologies (USA)
Related Parts
3040-00-374-2127INTERCHANGEABLE
SHAFT,STRAIGHT
5330-00-924-8508INTERCHANGEABLE
GASKET
65-301
4820-01-251-5524INTERCHANGEABLE
VALVE,PLUG
A65301

Frequently Asked Questions

What is NSN 5330-00-558-2518?

NSN 5330-00-558-2518 is a Seal Ring,metal, manufactured by Arkwin Industries, Inc. Dba Arkwin Industries Inc, classified under FSC 5330 (No Item Name Available). Status: active.

What are the part numbers for NSN 5330-00-558-2518?

NSN 5330-00-558-2518 has 2 cross-referenced part numbers: 12A053-29 (Arkwin Industries, Inc. Dba Arkwin Industries Inc), 65301 (Kaydon Ring & Seal Inc Dba Skf Precision Technologies).

What NSN replaces 5330-00-558-2518?

There are 3 known substitutes for 5330-00-558-2518: 3040-00-374-2127, 5330-00-924-8508, 4820-01-251-5524. Verify interchangeability with system specifications before substitution.

What are the specifications of 12A053-29?

Key specifications for 12A053-29: Joint Style: STEP JOINT; FSC Application Data: CYLINDER,AIRCRAFT HYDRAULIC SYSTEM; Material: COPPER ALLOY OVERALL; Ring Style: CONTRACTING CONCENTRIC. 8 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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