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HT1-749-20 — MOUNT,RESILIENT,UTILITY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

HT1-749-20: MOUNT,RESILIENT,UTILITY.

The MOUNT,RESILIENT,UTILITY is a the manufacturer industrial component. Key specifications include height: 1.350 INCHES NOMINAL IN, material: ALUMINUM ALLOY HOLDER, load_rating: 20.0 POUNDS MAXIMUM LBS, thread_size: 1/4-28 ALL THREADED PORTIONS, flange_width: 1.810 INCHES NOMINAL IN, flange_length: 1.810 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-034-7929, 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
HT1-749-20
NSN: 5340-00-034-7929
FSC: 5340 — Hardware, Commercial
CAGE: 76005 — LORD CORPORATION DBA LORD CORP (USA)
SPECIFICATIONS
height1.350 INCHES NOMINAL IN
materialALUMINUM ALLOY HOLDER
load_rating20.0 POUNDS MAXIMUM LBS
thread_size1/4-28 ALL THREADED PORTIONS
flange_width1.810 INCHES NOMINAL IN
flange_length1.810 INCHES NOMINAL IN
surface_treatmentCHROMATE INNER MEMBER
flange_mounting_hole_diameter0.193 INCHES NOMINAL IN
surface_treatment_document_and_classificationMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE WASHER
NSN5340-00-034-7929
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: HT1-749-20 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
•
FLANGE MOUNTING HOLE DIAMETER: 0.193 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE WASHER
•
LOAD RATING: 20.0 POUNDS MAXIMUM LBS
•
FLANGE LENGTH: 1.810 INCHES NOMINAL IN
•
HEIGHT: 1.350 INCHES NOMINAL IN
•
THREAD SIZE: 1/4-28 ALL THREADED PORTIONS
TECHNICAL CHARACTERISTICS
FLANGE MOUNTING HOLE DIAMETER0.193 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE WASHER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE INNER MEMBER
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-5541 MIL SPEC SINGLE TREATMENT RESPONSE HOLDER
LOAD RATING20.0 POUNDS MAXIMUM LBS
FLANGE LENGTH1.810 INCHES NOMINAL IN
HEIGHT1.350 INCHES NOMINAL IN
THREAD SIZE1/4-28 ALL THREADED PORTIONS
SURFACE TREATMENTANODIZE WASHER
SURFACE TREATMENTCHROMATE INNER MEMBER
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 2
10117230Reference document
Same NSN cross-reference
Reference document — Informative reference only
575R780H04Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HT1-749-20?
HT1-749-20 is a MOUNT,RESILIENT,UTILITY.
What parts can replace HT1-749-20?
There are 2 known substitutes for HT1-749-20: 10117230, 575R780H04. Substitute compatibility should be verified for your specific system.
What is the NSN for HT1-749-20?
HT1-749-20 is cataloged in the U.S. Government catalog under NSN 5340-00-034-7929. This indicates validated use in U.S. government and defense supply chains.
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