PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

8599135 ITEM 44D7O-Ring

Naval Inventory Control Point Mechanicsburg · NSN 5331-01-666-7207 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-01-666-7207 — this item is cataloged by the U.S. Government under National Stock Number 5331-01-666-7207. Primary manufacturer part number: 8599135 ITEM 44D7.
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
  • 5 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 5331-01-666-7207, 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 5 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5331-01-666-7207
Primary Part Number8599135 ITEM 44D7
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 9
5331-00-439-8123 INTERCHANGEABLE
O-Ring
5331-00-831-6640 INTERCHANGEABLE
O-Ring
5331-00-845-8343414193-25 INTERCHANGEABLE
O-Ring
Raytheon Company Dba Raytheon
5331-00-935-6126 INTERCHANGEABLE
O-Ring
5331-01-020-5951 INTERCHANGEABLE
O-Ring
5330-01-049-6220028-09374-000 INTERCHANGEABLE
Packing,preformed
Johnson Controls Navy Systems, Llc
5331-01-115-8224 INTERCHANGEABLE
O-Ring
5331-01-123-3719 INTERCHANGEABLE
O-Ring
5331-01-166-1712AS568-015 INTERCHANGEABLE
O-Ring
Sae International Dba Sae International
Cross-Reference Index
Part NumberManufacturer
8599135 ITEM 44D7 Naval Inventory Control Point Mechanicsburg (USA)
AS568-015 Sae International Dba Sae International (USA)
AS568-015D7 Naval Inventory Control Point Mechanicsburg (USA)
AS568-015 Society of Automotive Engineers Inc (USA)
8599135 ITEM 44 Naval Sea Systems Command (USA)
Related Parts
5331-00-439-8123INTERCHANGEABLE
O-RING
5331-00-831-6640INTERCHANGEABLE
O-RING
5331-00-845-8343INTERCHANGEABLE
O-RING
414193-25
5331-00-935-6126INTERCHANGEABLE
O-RING
5331-01-020-5951INTERCHANGEABLE
O-RING
5330-01-049-6220INTERCHANGEABLE
PACKING,PREFORMED
028-09374-000
5331-01-115-8224INTERCHANGEABLE
O-RING
5331-01-123-3719INTERCHANGEABLE
O-RING
5331-01-166-1712INTERCHANGEABLE
O-RING
AS568-015

Frequently Asked Questions

What is NSN 5331-01-666-7207?

NSN 5331-01-666-7207 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 5331-01-666-7207?

NSN 5331-01-666-7207 has 5 cross-referenced part numbers: 8599135 ITEM 44D7 (Naval Inventory Control Point Mechanicsburg), AS568-015 (Sae International Dba Sae International), AS568-015D7 (Naval Inventory Control Point Mechanicsburg), AS568-015 (Society of Automotive Engineers Inc), 8599135 ITEM 44 (Naval Sea Systems Command).

What NSN replaces 5331-01-666-7207?

There are 9 known substitutes for 5331-01-666-7207: 5331-00-439-8123, 5331-00-831-6640, 5331-00-845-8343 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 8599135 ITEM 44D7?

Key specifications for 8599135 ITEM 44D7: 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.
PartsTable Design LLC · partstable.com