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55879-02 — STRAP,RETAINING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

55879-02: STRAP,RETAINING.

The STRAP,RETAINING is a the manufacturer industrial component. Key specifications include cushion: NOT INCLUDED, material: RUBBER SILICONE CLASS Q LOCATION NOT OTHERWISE SPECIFIED, mounting_pad: NOT INCLUDED, overall_width: 2.000 INCHES NOMINAL IN, overall_length: 25.500 INCHES NOMINAL IN, style_designator: IRREGULAR ARCH. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-230-2326, 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
55879-02
NSN: 5340-01-230-2326
FSC: 5340 — Hardware, Commercial
CAGE: 07703 — ATK LAUNCH SYSTEMS LLC DBA ATK LAUNCH SYSTEMS-PROMONTORY DIV PROPULSION SYSTEMS - PROMONTORY (USA)
SPECIFICATIONS
cushionNOT INCLUDED
materialRUBBER SILICONE CLASS Q LOCATION NOT OTHERWISE SPECIFIED
mounting_padNOT INCLUDED
overall_width2.000 INCHES NOMINAL IN
overall_length25.500 INCHES NOMINAL IN
style_designatorIRREGULAR ARCH
material_thickness0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
inside_diameter/arch_length4.000 INCHES NOMINAL IN
nuclear_hardness_critical_featureHARDENED
distance_between_base_and_inside_of_arch0.630 INCHES NOMINAL IN
distance_between_base_and_inside_of_large_arch1.130 INCHES NOMINAL IN
NSN5340-01-230-2326
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 55879-02 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
•
MOUNTING PAD: NOT INCLUDED
•
STYLE DESIGNATOR: IRREGULAR ARCH
•
DISTANCE BETWEEN BASE AND INSIDE OF LARGE ARCH: 1.130 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
•
CUSHION: NOT INCLUDED
•
DISTANCE BETWEEN BASE AND INSIDE OF ARCH: 0.630 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING PADNOT INCLUDED
STYLE DESIGNATORIRREGULAR ARCH
DISTANCE BETWEEN BASE AND INSIDE OF LARGE ARCH1.130 INCHES NOMINAL IN
OVERALL LENGTH25.500 INCHES NOMINAL IN
OVERALL WIDTH2.000 INCHES NOMINAL IN
MATERIAL THICKNESS0.120 INCHES MINIMUM AND 0.180 INCHES MAXIMUM IN
CUSHIONNOT INCLUDED
DISTANCE BETWEEN BASE AND INSIDE OF ARCH0.630 INCHES NOMINAL IN
MATERIALRUBBER SILICONE CLASS Q LOCATION NOT OTHERWISE SPECIFIED
NUCLEAR HARDNESS CRITICAL FEATUREHARDENED
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 55879-02?
55879-02 is a STRAP,RETAINING.
What is the NSN for 55879-02?
55879-02 is cataloged in the U.S. Government catalog under NSN 5340-01-230-2326. This indicates validated use in U.S. government and defense supply chains.
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