PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MS9058-06Back-Up Ring,preformed Packing

Sae International Dba Sae International · NSN 5330-00-559-1939 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-559-1939 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-559-1939. Primary manufacturer part number: MS9058-06.
Features
  • Back-Up Ring,preformed Packing — FSC 5330
  • Material: PLASTIC POLYTETRAFLUOROETHYLENE
  • Cross-Sectional Height: 0.057 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
  • Peripheral Diameter: 0.720 INCHES NOMINAL IN
  • Center Hole Diameter: 0.478 INCHES NOMINAL IN
  • Material Document and Classification: AMS 3651 ASSN STD SINGLE MATERIAL RESPONSE
  • 12 verified cross-references
  • Primary manufacturer: Sae International Dba Sae International
Applications
  • Applications requiring Plastic Polytetrafluoroethylene construction
General Description

The Back-Up Ring,preformed Packing, cataloged under National Stock Number 5330-00-559-1939, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sae International Dba Sae International. Government technical data includes 5 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 11 manufacturers, 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
NSN5330-00-559-1939
Primary Part NumberMS9058-06
Item NameBack-Up Ring,preformed Packing
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerSae International Dba Sae International
StatusCANCELLED
MaterialPLASTIC POLYTETRAFLUOROETHYLENE
Cross-Sectional Height0.057 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
Peripheral Diameter0.720 INCHES NOMINAL IN
Center Hole Diameter0.478 INCHES NOMINAL IN
Material Document and ClassificationAMS 3651 ASSN STD SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5330-00-329-9668MS9058-10 INTERCHANGEABLE
Back-Up Ring,preformed Packing
Sae International Dba Sae International
5330-00-415-2193MS9058-32 INTERCHANGEABLE
Back-Up Ring,preformed Packing
Sae International Dba Sae International
5330-00-515-3432MS9058-05 INTERCHANGEABLE
Back-Up Ring,preformed Packing
Sae International Dba Sae International
5330-00-527-91065R15-16 INTERCHANGEABLE
Back-Up Ring,preformed Packing
Steelcase Inc.
5330-00-527-91075R15-12 INTERCHANGEABLE
Back-Up Ring,preformed Packing
The Boeing Company Div Legacy Am&m
5330-00-582-7486MS9058-03 INTERCHANGEABLE
Back-Up Ring,preformed Packing
Sae International Dba Sae International
5330-00-585-8200MS9058-20 INTERCHANGEABLE
Back-Up Ring,preformed Packing
Sae International Dba Sae International
5330-00-722-4969AS9058-6 INTERCHANGEABLE
Back-Up Ring,preformed Packing
Sae International Dba Sae International
5330-00-802-5631MS9058-24 INTERCHANGEABLE
Back-Up Ring,preformed Packing
Sae International Dba Sae International
5330-00-805-6039MS9058-02 INTERCHANGEABLE
Back-Up Ring,preformed Packing
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
MS9058-06 Society of Automotive Engineers Inc (USA)
MS9058-06 PRIMARY Sae International Dba Sae International (USA)
SR2619-6 Satair A/s (DNK)
SR2619-6 Shamban Polymer Tech Group (USA)
5330PL0210310 Jednolity Indeks Materialowy - Uniform Material Index (POL)
10449874 Nimikkeistokeskus Ncb Finland (FIN)
SAE-AS9058 Sae International Dba Sae International (USA)
MS9058-06 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
5475-0600 PRIMARY Kidde-Fenwal, Llc (USA)
SR2619-6 PRIMARY Trelleborg Sealing Solutions Us, Inc. (USA)
MS9058-06 Seal Dynamics Llc (USA)
7M46-1 The Boeing Company Div Defense (USA)
Related Parts
5330-00-329-9668INTERCHANGEABLE
BACK-UP RING,PREFORMED PACKING
MS9058-10
5330-00-415-2193INTERCHANGEABLE
BACK-UP RING,PREFORMED PACKING
MS9058-32
5330-00-515-3432INTERCHANGEABLE
BACK-UP RING,PREFORMED PACKING
MS9058-05
5330-00-527-9106INTERCHANGEABLE
BACK-UP RING,PREFORMED PACKING
5R15-16
5330-00-527-9107INTERCHANGEABLE
BACK-UP RING,PREFORMED PACKING
5R15-12
5330-00-582-7486INTERCHANGEABLE
BACK-UP RING,PREFORMED PACKING
MS9058-03
5330-00-585-8200INTERCHANGEABLE
BACK-UP RING,PREFORMED PACKING
MS9058-20
5330-00-722-4969INTERCHANGEABLE
BACK-UP RING,PREFORMED PACKING
AS9058-6
5330-00-802-5631INTERCHANGEABLE
BACK-UP RING,PREFORMED PACKING
MS9058-24
5330-00-805-6039INTERCHANGEABLE
BACK-UP RING,PREFORMED PACKING
MS9058-02
5330-01-630-7030INTERCHANGEABLE
BACK-UP RING,PREFORMED PACKING
MS9058-4
5330-01-645-3065INTERCHANGEABLE
RETAINER,PACKING
SAE-AS9058-10

Frequently Asked Questions

What is NSN 5330-00-559-1939?

NSN 5330-00-559-1939 is a Back-Up Ring,preformed Packing, manufactured by Sae International Dba Sae International, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-559-1939?

NSN 5330-00-559-1939 has 12 cross-referenced part numbers: MS9058-06 (Society of Automotive Engineers Inc), MS9058-06 (Sae International Dba Sae International), SR2619-6 (Satair A/s), SR2619-6 (Shamban Polymer Tech Group), 5330PL0210310 (Jednolity Indeks Materialowy - Uniform Material Index) and 7 more.

What NSN replaces 5330-00-559-1939?

There are 12 known substitutes for 5330-00-559-1939: 5330-00-329-9668, 5330-00-415-2193, 5330-00-515-3432 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MS9058-06?

Key specifications for MS9058-06: Material: PLASTIC POLYTETRAFLUOROETHYLENE; Cross-Sectional Height: 0.057 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN; Peripheral Diameter: 0.720 INCHES NOMINAL IN; Center Hole Diameter: 0.478 INCHES NOMINAL IN. 6 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-559-1939 still in active supply?

NSN 5330-00-559-1939 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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