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Technical Data Sheet
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1621 ITEM 15 — RETAINING STRAP ASSEMBLY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1621 ITEM 15: RETAINING STRAP ASSEMBLY.

The RETAINING STRAP ASSEMBLY is a the manufacturer industrial component. Key specifications include end_item_identification: CALIBRATION SET ASSEMBLY - HYDROGEN DETECTOR SYSTEM; W/S: VIRGINIA CLASS SUBMARINE, SSN-774. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-514-8415, 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
1621 ITEM 15
NSN: 5340-01-514-8415
FSC: 5340 — Hardware, Commercial
CAGE: 47750 — PLAINVILLE ELECTRICAL PRODUCTS COMPANY, THE DBA PLAINVILLE ELECTRICAL PRODUCTS (USA)
SPECIFICATIONS
end_item_identificationCALIBRATION SET ASSEMBLY - HYDROGEN DETECTOR SYSTEM; W/S: VIRGINIA CLASS SUBMARINE, SSN-774
accessory_components_and_quantitySTRAP 1; END FASTENERS 2; BELT MOUNTING BRACKET 1; SCREW (PAN HEAD PHILLIPS 8-32 X 3/8) 4; NUT (HEX, NYLON LOCKING 8-32) 4
NSN5340-01-514-8415
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1621 ITEM 15 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
•
ACCESSORY COMPONENTS AND QUANTITY: STRAP 1; END FASTENERS 2; BELT MOUNTING BRACKET 1; SCREW (PAN HEAD PHILLIPS 8-32 X 3/8) 4; NUT (HEX, NYLON LOCKING 8-32) 4
TECHNICAL CHARACTERISTICS
ACCESSORY COMPONENTS AND QUANTITYSTRAP 1; END FASTENERS 2; BELT MOUNTING BRACKET 1; SCREW (PAN HEAD PHILLIPS 8-32 X 3/8) 4; NUT (HEX, NYLON LOCKING 8-32) 4
END ITEM IDENTIFICATIONCALIBRATION SET ASSEMBLY - HYDROGEN DETECTOR SYSTEM; W/S: VIRGINIA CLASS SUBMARINE, SSN-774
SUBSTITUTES & CROSS-REFERENCES 1
1626Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1621 ITEM 15?
1621 ITEM 15 is a RETAINING STRAP ASSEMBLY.
What parts can replace 1621 ITEM 15?
There is 1 known substitute for 1621 ITEM 15: 1626. Substitute compatibility should be verified for your specific system.
What is the NSN for 1621 ITEM 15?
1621 ITEM 15 is cataloged in the U.S. Government catalog under NSN 5340-01-514-8415. 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.