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ES183-21-77 — PACKING ASSEMBLY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

ES183-21-77: PACKING ASSEMBLY.

The PACKING ASSEMBLY is a the manufacturer industrial component. Key specifications include height: 0.245 INCHES NOMINAL IN, material: PLASTIC POLYTETRAFLUOROETHYLENE AND GRAPHITE TOP RING, temp_rating: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF, inside_diameter: 0.748 INCHES NOMINAL IN, outside_diameter: 0.991 INCHES NOMINAL IN, cross-sectional_shape_style: SQUARE/RECTANGULAR TOP RING. This part is cataloged in the U.S.

Government catalog under NSN 5330-01-122-7705, 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
ES183-21-77
NSN: 5330-01-122-7705
FSC: 5330 — Packing and Gasket Materials
CAGE: 33068 — TRIUMPH ACTUATION SYSTEMS - CONNECTICUT, LLC (USA)
SPECIFICATIONS
height0.245 INCHES NOMINAL IN
materialPLASTIC POLYTETRAFLUOROETHYLENE AND GRAPHITE TOP RING
temp_rating-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
inside_diameter0.748 INCHES NOMINAL IN
outside_diameter0.991 INCHES NOMINAL IN
intermediate_ring_quantity1
cross-sectional_shape_styleSQUARE/RECTANGULAR TOP RING
material_document_and_classification972 FSCM 72902 MFR REF SINGLE MATERIAL RESPONSE INTERMEDIATE RING
NSN5330-01-122-7705
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: ES183-21-77 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
•
TEMP RATING: -65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
•
INTERMEDIATE RING QUANTITY: 1
•
OUTSIDE DIAMETER: 0.991 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: 972 FSCM 72902 MFR REF SINGLE MATERIAL RESPONSE INTERMEDIATE RING
•
CROSS-SECTIONAL SHAPE STYLE: SQUARE/RECTANGULAR BOTTOM RING
•
INSIDE DIAMETER: 0.748 INCHES NOMINAL IN
•
HEIGHT: 0.245 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
TEMP RATING-65.0 FAHRENHEIT AND 275.0 FAHRENHEIT DEGF
INTERMEDIATE RING QUANTITY1
OUTSIDE DIAMETER0.991 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATION972 FSCM 72902 MFR REF SINGLE MATERIAL RESPONSE INTERMEDIATE RING
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR BOTTOM RING
CROSS-SECTIONAL SHAPE STYLESQUARE/RECTANGULAR TOP RING
INSIDE DIAMETER0.748 INCHES NOMINAL IN
HEIGHT0.245 INCHES NOMINAL IN
MATERIALRUBBER BUTADIENE-ACRYLONITRILE CLASS NBR INTERMEDIATE RING
MATERIALPLASTIC POLYTETRAFLUOROETHYLENE AND GRAPHITE TOP RING
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 2
10119697Reference document
Same NSN cross-reference
Reference document — Informative reference only
721G0FR-972-5711Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ES183-21-77?
ES183-21-77 is a PACKING ASSEMBLY.
What parts can replace ES183-21-77?
There are 2 known substitutes for ES183-21-77: 10119697, 721G0FR-972-5711. Substitute compatibility should be verified for your specific system.
What is the NSN for ES183-21-77?
ES183-21-77 is cataloged in the U.S. Government catalog under NSN 5330-01-122-7705. This indicates validated use in U.S. government and defense supply chains.
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