PartsTable
Technical Data Sheet

M8791/1-221 — RETAINER,PACKING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

M8791/1-221: RETAINER,PACKING.

The RETAINER,PACKING is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL, joint_type: SCARF-PERIPHERAL OVERALL, peripheral_diameter: 1.670 INCHES MINIMUM AND 1.676 INCHES MAXIMUM IN, center_hole_diameter: 1.434 INCHES MINIMUM AND 1.436 INCHES MAXIMUM IN, cross-sectional_height: 0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN, cross-sectional_shape_style: SQUARE/RECTANGULAR. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-458-7005, 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
M8791/1-221
NSN: 5330-01-458-7005
FSC: 5330 — Packing and Gasket Materials
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
joint_typeSCARF-PERIPHERAL OVERALL
peripheral_diameter1.670 INCHES MINIMUM AND 1.676 INCHES MAXIMUM IN
center_hole_diameter1.434 INCHES MINIMUM AND 1.436 INCHES MAXIMUM IN
cross-sectional_height0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
cross-sectional_shape_styleSQUARE/RECTANGULAR
material_document_and_classificationMIL-R-8791/1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5330-01-458-7005
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: M8791/1-221 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
•
CROSS-SECTIONAL HEIGHT: 0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-R-8791/1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR
•
PERIPHERAL DIAMETER: 1.670 INCHES MINIMUM AND 1.676 INCHES MAXIMUM IN
•
CENTER HOLE DIAMETER: 1.434 INCHES MINIMUM AND 1.436 INCHES MAXIMUM IN
•
MATERIAL: PLASTIC POLYTETRAFLUOROETHYLENE OVERALL
•
JOINT TYPE: SCARF-PERIPHERAL OVERALL
TECHNICAL CHARACTERISTICS
CROSS-SECTIONAL HEIGHT0.060 INCHES MINIMUM AND 0.064 INCHES MAXIMUM IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-R-8791/1 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR
PERIPHERAL DIAMETER1.670 INCHES MINIMUM AND 1.676 INCHES MAXIMUM IN
CENTER HOLE DIAMETER1.434 INCHES MINIMUM AND 1.436 INCHES MAXIMUM IN
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE OVERALL
JOINT TYPESCARF-PERIPHERAL OVERALL
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 3
MIL-R-8791Reference document
Same NSN cross-reference
Reference document — Secondary reference
AS8791Reference document
Same NSN cross-reference
Reference document — Secondary reference
SAE-AS8791/1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy M8791/1-221?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is M8791/1-221?
M8791/1-221 is a RETAINER,PACKING.
What parts can replace M8791/1-221?
There are 3 known substitutes for M8791/1-221: MIL-R-8791, AS8791, SAE-AS8791/1. Substitute compatibility should be verified for your specific system.
What is the NSN for M8791/1-221?
M8791/1-221 is cataloged in the U.S. Government catalog under NSN 5330-01-458-7005. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — M8791/1-221