PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-25988/1O-Ring

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5331-00-559-6514 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-559-6514 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-559-6514. Primary manufacturer part number: MIL-DTL-25988/1.
Features
  • O-Ring — FSC 5331
  • 21 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
General Description

The O-Ring, cataloged under National Stock Number 5331-00-559-6514, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. This item has 21 commercial cross-references from 16 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Catalog Facts
Item NameO-Ring
FSC / FSG5331 — O-Ring (FSG 53)
ManufacturersMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M (CAGE 81349); Parco, Llc (CAGE 77308); Parker-Hannifin Corp Div O-Ring Division (CAGE 02697); Eriks B.v. (CAGE H2313); Parker Hannifin Corporation Div O-Ring Division (CAGE 25184)
Technical Specifications
ParameterValue
NSN5331-00-559-6514
Primary Part NumberMIL-DTL-25988/1
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
3110-00-100-3700 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-25988/1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
PRP568-006-1903-70 Parco, Llc (USA)
2-006L1120-70 Parker-Hannifin Corp Div O-Ring Division (USA)
M25988/1-006 Eriks B.v. (NLD)
006-11647 Parker Hannifin Corporation Div O-Ring Division (USA)
C10762-0070-0006 Rosemount Aerospace Inc Dba Rosemount Aerospace Inc (USA)
2-006 L677-70 Parker Hannifin Gmbh O-Ring Division (DEU)
L677-70-6 Parker-Hannifin Corporation Dba Pneutronics Div Composite Sealing Systems Division (USA)
2-006L677-70 Parker-Hannifin Corp Div O-Ring Division (USA)
C10762-0070-0006 Rosemount Inc Dba Fisher Rosemount Service and Support (USA)
11647-6 Parker Hannifin Corporation Div O-Ring Division (USA)
A-006 TH1057 Stillman Seal Corporation Div Stillman Seal Corperation (USA)
MILR25988-1 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
99-4601-006 Hamilton Sundstrand Corporation (USA)
5331PL0657030 Jednolity Indeks Materialowy - Uniform Material Index (POL)
M25988/1-006 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MS25988/1-006 Zf Industrieantriebe Witten Gmbh (DEU)
69483P070-114 Hamilton Sundstrand Corporation Dba Collins Aerospace (USA)
2661058Y006 Parker Hannifin Corporation Div Aerospace Group Headquarters (USA)
PRP006-11647 Parker Hannifin Corporation Div O-Ring Division (USA)
Related Parts
3110-00-100-3700INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER

Frequently Asked Questions

What is NSN 5331-00-559-6514?

NSN 5331-00-559-6514 is a O-Ring, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5331 (O-Ring). Status: cancelled.

What are the part numbers for NSN 5331-00-559-6514?

NSN 5331-00-559-6514 has 21 cross-referenced part numbers: MIL-DTL-25988/1 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), PRP568-006-1903-70 (Parco, Llc), 2-006L1120-70 (Parker-Hannifin Corp Div O-Ring Division), M25988/1-006 (Eriks B.v.), 006-11647 (Parker Hannifin Corporation Div O-Ring Division) and 16 more.

What NSN replaces 5331-00-559-6514?

There is 1 known substitute for 5331-00-559-6514: 3110-00-100-3700. Verify interchangeability with system specifications before substitution.

Is NSN 5331-00-559-6514 still in active supply?

NSN 5331-00-559-6514 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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