PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

156-401O-Ring

Graco Inc. · NSN 5331-00-691-8143 · FSC 5331 · O-Ring
Verified by PartsTable
NSN 5331-00-691-8143 — this item is cataloged by the U.S. Government under National Stock Number 5331-00-691-8143. Primary manufacturer part number: 156-401.
Features
  • O-Ring — FSC 5331
  • Center Hole Diameter: 0.853 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN
  • Material: RUBBER SYNTHETIC
  • Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
  • 4 verified cross-references
  • Primary manufacturer: Graco Inc.
Applications
  • Fluid containment and leak prevention
  • Pressure boundary maintenance
  • Environmental sealing
  • Applications requiring Rubber Synthetic construction
General Description

The O-Ring, cataloged under National Stock Number 5331-00-691-8143, is classified within Federal Supply Class 5331 (O-Ring) of the Hardware and Abrasives group. The primary manufacturer of record is Graco Inc.. Government technical data includes 3 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 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
NSN5331-00-691-8143
Primary Part Number156-401
Item NameO-Ring
FSC / FSG5331 / 53 — O-Ring
ManufacturerGraco Inc.
StatusACTIVE
Center Hole Diameter0.853 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN
MaterialRUBBER SYNTHETIC
Cross-Sectional Height0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5315-00-171-4350PLGA1564010 INTERCHANGEABLE
Pin,tapered,plain
The Lee Co Dba the Lee Co
4820-00-405-41692271439PC2 INTERCHANGEABLE
Valve,safety Relief
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5331-00-579-8156DS-932327 INTERCHANGEABLE
O-Ring
Eaton Aerospace, Llc Dba Jackson South
5331-00-582-7134 INTERCHANGEABLE
O-Ring
5330-00-969-7068 INTERCHANGEABLE
Packing,preformed
4730-01-190-359821S011903598 INTERCHANGEABLE
Plug,pipe
Naval Sea Systems Command Logistics Support Engineering Activity
4820-01-682-0517156401 INTERCHANGEABLE
Guide,valve Stem
Emerson Automation Solutions Final Control Us Lp Div Navy Product Team
Cross-Reference Index
Part NumberManufacturer
5331PL0796200 Jednolity Indeks Materialowy - Uniform Material Index (POL)
156401 Graco Inc. (USA)
156-401 PRIMARY Graco Inc. (USA)
6227-17 Graco Inc. (USA)
Related Parts
5315-00-171-4350INTERCHANGEABLE
PIN,TAPERED,PLAIN
PLGA1564010
4820-00-405-4169INTERCHANGEABLE
VALVE,SAFETY RELIEF
2271439PC2
5331-00-579-8156INTERCHANGEABLE
O-RING
DS-932327
5331-00-582-7134INTERCHANGEABLE
O-RING
5330-00-969-7068INTERCHANGEABLE
PACKING,PREFORMED
4730-01-190-3598INTERCHANGEABLE
PLUG,PIPE
21S011903598
4820-01-682-0517INTERCHANGEABLE
GUIDE,VALVE STEM
156401

Frequently Asked Questions

What is NSN 5331-00-691-8143?

NSN 5331-00-691-8143 is a O-Ring, manufactured by Graco Inc., classified under FSC 5331 (O-Ring). Status: active.

What are the part numbers for NSN 5331-00-691-8143?

NSN 5331-00-691-8143 has 4 cross-referenced part numbers: 5331PL0796200 (Jednolity Indeks Materialowy - Uniform Material Index), 156401 (Graco Inc.), 156-401 (Graco Inc.), 6227-17 (Graco Inc.).

What NSN replaces 5331-00-691-8143?

There are 7 known substitutes for 5331-00-691-8143: 5315-00-171-4350, 4820-00-405-4169, 5331-00-579-8156 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 156-401?

Key specifications for 156-401: Center Hole Diameter: 0.853 INCHES MINIMUM AND 0.865 INCHES MAXIMUM IN; Material: RUBBER SYNTHETIC; Cross-Sectional Height: 0.135 INCHES MINIMUM AND 0.143 INCHES MAXIMUM IN. 3 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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