PartsTable
Technical Data Sheet

918272-1/4 — PACKING WITH RETAINER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

918272-1/4: PACKING WITH RETAINER.

The PACKING WITH RETAINER is a the manufacturer industrial component. Key specifications include material: RUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING, construction: ONE-PIECE, outside_diameter: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN, special_features: FOR USE WITH 1/4" NOMINAL DIAMETER FASTENERS, surface_treatment: NICKEL RETAINER, retainer_thickness: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-411-9067, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
918272-1/4
NSN: 5330-01-411-9067
FSC: 5330 — Packing and Gasket Materials
CAGE: 83259 — PARKER-HANNIFIN CORPORATION DBA PNEUTRONICS DIV COMPOSITE SEALING SYSTEMS DIVISION (USA)
SPECIFICATIONS
materialRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
constructionONE-PIECE
outside_diameter0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
special_featuresFOR USE WITH 1/4" NOMINAL DIAMETER FASTENERS
surface_treatmentNICKEL RETAINER
retainer_thickness0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
packing_inside_diameter0.253 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN
material_document_and_classificationMIL-S-18729 OR MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE RETAINER
surface_treatment_document_and_classificationMIL-C-26074 CL2, GR B MIL SPEC SINGLE TREATMENT RESPONSE RETAINER
NSN5330-01-411-9067
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 918272-1/4 MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-26074 CL2, GR B MIL SPEC SINGLE TREATMENT RESPONSE RETAINER
•
PACKING INSIDE DIAMETER: 0.253 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-P-83461 MIL SPEC SINGLE MATERIAL RESPONSE PACKING
•
RETAINER THICKNESS: 0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
•
SURFACE TREATMENT: NICKEL RETAINER
TECHNICAL CHARACTERISTICS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-26074 CL2, GR B MIL SPEC SINGLE TREATMENT RESPONSE RETAINER
PACKING INSIDE DIAMETER0.253 INCHES MINIMUM AND 0.257 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.490 INCHES MINIMUM AND 0.510 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-P-83461 MIL SPEC SINGLE MATERIAL RESPONSE PACKING
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-18729 OR MIL-S-6758 MIL SPEC SINGLE MATERIAL RESPONSE RETAINER
RETAINER THICKNESS0.090 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
SPECIAL FEATURESFOR USE WITH 1/4" NOMINAL DIAMETER FASTENERS
SURFACE TREATMENTNICKEL RETAINER
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR PACKING
MATERIALSTEEL COMP 4130 RETAINER
OTHER ITEMS IN FSC 5330 — Packing and Gasket Materials
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5330-00-000-0085 5330-00-000-0167 5330-00-000-5275 5330-00-001-1260 5330-00-001-1833 5330-00-001-1844 5330-00-001-1845 5330-00-001-1846
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 918272-1/4?
918272-1/4 is a PACKING WITH RETAINER.
What is the NSN for 918272-1/4?
918272-1/4 is cataloged in the U.S. Government catalog under NSN 5330-01-411-9067. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.