PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8599135 ITEM 14D7O-Ring

Naval Inventory Control Point Mechanicsburg · NSN 5331-01-666-7646 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-666-7646 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-666-7646. Primary manufacturer part number: 8599135 ITEM 14D7.
Features
  • O-Ring — FSC 5331
  • Criticality Code Justification: ZZZY
  • Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PROEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES
  • 4 verified cross-references
  • Primary manufacturer: Naval Inventory Control Point Mechanicsburg
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-01-666-7646, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Naval Inventory Control Point Mechanicsburg. 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. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-666-7646
Primary Part Number8599135 ITEM 14D7
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerNaval Inventory Control Point Mechanicsburg
StatusACTIVE
Criticality Code JustificationZZZY
Reference Number Differentiating CharacteristicsMATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PROEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5331-00-213-87228200-14 INTERCHANGEABLE
O-Ring
Aqualung Usa, Inc
5331-00-340-4414 INTERCHANGEABLE
O-Ring
5331-00-580-65832-014N674-70 INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5331-00-612-6148104X14L INTERCHANGEABLE
O-Ring
Parker-Hannifin Corp Div O-Ring Division
5331-00-952-5433AS568-014 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
5330-01-376-7777AS568-014 INTERCHANGEABLE
Packing,preformed
Eaton Aerospace, Llc Dba Jackson South
5331-01-669-9777 INTERCHANGEABLE
O-Ring
Cross-Reference Index
Part NumberManufacturer
8599135 ITEM 14D7 Naval Inventory Control Point Mechanicsburg (USA)
AS568-014D7 Naval Inventory Control Point Mechanicsburg (USA)
AS568-014 Federal Aviation Administration Dba F a a (USA)
8599135 ITEM 14 Naval Sea Systems Command (USA)
Related Parts
5331-00-213-8722INTERCHANGEABLE
O-RING
8200-14
5331-00-340-4414INTERCHANGEABLE
O-RING
5331-00-580-6583INTERCHANGEABLE
O-RING
2-014N674-70
5331-00-612-6148INTERCHANGEABLE
O-RING
104X14L
5331-00-952-5433INTERCHANGEABLE
O-RING
AS568-014
5330-01-376-7777INTERCHANGEABLE
PACKING,PREFORMED
AS568-014
5331-01-669-9777INTERCHANGEABLE
O-RING

Frequently Asked Questions

What is NSN 5331-01-666-7646?

NSN 5331-01-666-7646 is a O-Ring, manufactured by Naval Inventory Control Point Mechanicsburg, classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-01-666-7646?

NSN 5331-01-666-7646 has 4 cross-referenced part numbers: 8599135 ITEM 14D7 (Naval Inventory Control Point Mechanicsburg), AS568-014D7 (Naval Inventory Control Point Mechanicsburg), AS568-014 (Federal Aviation Administration Dba F a a), 8599135 ITEM 14 (Naval Sea Systems Command).

What NSN replaces 5331-01-666-7646?

There are 7 known substitutes for 5331-01-666-7646: 5331-00-213-8722, 5331-00-340-4414, 5331-00-580-6583 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8599135 ITEM 14D7?

Key specifications for 8599135 ITEM 14D7: Criticality Code Justification: ZZZY; Reference Number Differentiating Characteristics: MATERIAL CONTROLLED IAW SS800-AG-MAN-010/P-9290 SYSTEM CERTIFICATION PROEDURES AND CRITERIA MANUAL FOR DEEP SUBMERGENCE SYSTEMS; CRITICAL ITEM FOR SAETY AND SURVIVAL OF DEEP SUBMERGENCE RESEARCH AND RESCUE VEHICLES AS DIFFERENTIATED BY SPECIAL TEST FEATURES. 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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