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8170-28-3 — CLAMP,LOOP

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

8170-28-3: CLAMP,LOOP.

The CLAMP,LOOP is a the manufacturer industrial component. Key specifications include material: STEEL UNS J03001 BAND, overall_width: 1.250 INCHES NOMINAL IN, style_designator: SINGLE LOOP, material_thickness: 0.500 INCHES NOMINAL IN, nominal_thread_size: 0.625 INCHES IN, loop_inside_diameter: 3.500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-321-6481, 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
8170-28-3
NSN: 5340-00-321-6481
FSC: 5340 — Hardware, Commercial
CAGE: 81336 — CHIEF OF ENGINEERS DEPT OF ARMY (USA)
SPECIFICATIONS
materialSTEEL UNS J03001 BAND
overall_width1.250 INCHES NOMINAL IN
style_designatorSINGLE LOOP
material_thickness0.500 INCHES NOMINAL IN
nominal_thread_size0.625 INCHES IN
loop_inside_diameter3.500 INCHES NOMINAL IN
thread_quantity_per_inch18
material_document_and_classificationQQ-S-681 FED SPEC SINGLE MATERIAL RESPONSE BAND
distance_from_loop_center_to_tongue_end3.063 INCHES NOMINAL IN
center_to_center_distance_between_loop_and_mounting_hole2.438 INCHES NOMINAL IN
NSN5340-00-321-6481
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 8170-28-3 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
•
STYLE DESIGNATOR: SINGLE LOOP
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-681 FED SPEC SINGLE MATERIAL RESPONSE BAND
•
MATERIAL THICKNESS: 0.500 INCHES NOMINAL IN
•
DISTANCE FROM LOOP CENTER TO TONGUE END: 3.063 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 0.625 INCHES IN
•
THREAD QUANTITY PER INCH: 18
•
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE: 2.438 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORSINGLE LOOP
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-681 FED SPEC SINGLE MATERIAL RESPONSE BAND
OVERALL WIDTH1.250 INCHES NOMINAL IN
MATERIAL THICKNESS0.500 INCHES NOMINAL IN
DISTANCE FROM LOOP CENTER TO TONGUE END3.063 INCHES NOMINAL IN
NOMINAL THREAD SIZE0.625 INCHES IN
THREAD QUANTITY PER INCH18
CENTER TO CENTER DISTANCE BETWEEN LOOP AND MOUNTING HOLE2.438 INCHES NOMINAL IN
MATERIALSTEEL UNS J03001 BAND
LOOP INSIDE DIAMETER3.500 INCHES NOMINAL IN
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: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8170-28-3?
8170-28-3 is a CLAMP,LOOP.
What is the NSN for 8170-28-3?
8170-28-3 is cataloged in the U.S. Government catalog under NSN 5340-00-321-6481. 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.