PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5R15-12Back-Up Ring,preformed Packing

The Boeing Company Div Legacy Am&m · NSN 5330-00-527-9107 · FSC 5330 · No Item Name Available
Verified by PartsTable
NSN 5330-00-527-9107 — this item is cataloged by the U.S. Government under National Stock Number 5330-00-527-9107. Primary manufacturer part number: 5R15-12.
Features
  • Back-Up Ring,preformed Packing — FSC 5330
  • Material: PLASTIC
  • Center Hole Diameter: 0.941 INCHES NOMINAL IN
  • Peripheral Diameter: 1.279 INCHES NOMINAL IN
  • Cross-Sectional Height: 0.073 INCHES NOMINAL IN
  • 6 verified cross-references
  • Primary manufacturer: The Boeing Company Div Legacy Am&m
Applications
  • Applications requiring Plastic construction
General Description

The Back-Up Ring,preformed Packing, cataloged under National Stock Number 5330-00-527-9107, is classified within Federal Supply Class 5330 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is The Boeing Company Div Legacy Am&m. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 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
NSN5330-00-527-9107
Primary Part Number5R15-12
Item NameBack-Up Ring,preformed Packing
FSC / FSG5330 / 53 — No Item Name Available
ManufacturerThe Boeing Company Div Legacy Am&m
StatusCANCELLED
MaterialPLASTIC
Center Hole Diameter0.941 INCHES NOMINAL IN
Peripheral Diameter1.279 INCHES NOMINAL IN
Cross-Sectional Height0.073 INCHES NOMINAL IN
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.
5330-00-559-19395475-0600 INTERCHANGEABLE
Back-Up Ring,preformed Packing
Kidde-Fenwal, Llc
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
5R15-12 PRIMARY The Boeing Company Div Legacy Am&m (USA)
MS9058-12 Society of Automotive Engineers Inc (USA)
SAE-AS9058 Sae International Dba Sae International (USA)
5R15-12 Rockwell International Corp North American Aircraft Opns (USA)
MS9058-12 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MS9058-12 PRIMARY Sae International Dba Sae International (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
5330-00-559-1939INTERCHANGEABLE
BACK-UP RING,PREFORMED PACKING
5475-0600
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 5330-00-527-9107?

NSN 5330-00-527-9107 is a Back-Up Ring,preformed Packing, manufactured by The Boeing Company Div Legacy Am&m, classified under FSC 5330 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5330-00-527-9107?

NSN 5330-00-527-9107 has 6 cross-referenced part numbers: 5R15-12 (The Boeing Company Div Legacy Am&m), MS9058-12 (Society of Automotive Engineers Inc), SAE-AS9058 (Sae International Dba Sae International), 5R15-12 (Rockwell International Corp North American Aircraft Opns), MS9058-12 (Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M) and 1 more.

What NSN replaces 5330-00-527-9107?

There are 12 known substitutes for 5330-00-527-9107: 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 5R15-12?

Key specifications for 5R15-12: Material: PLASTIC; Center Hole Diameter: 0.941 INCHES NOMINAL IN; Special Features: JOINT TYPE: SCARF-PERIPHERAL RETAINER; Peripheral Diameter: 1.279 INCHES NOMINAL IN. 5 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5330-00-527-9107 still in active supply?

NSN 5330-00-527-9107 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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