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1740A45 — LOCK,RIM

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

1740A45: LOCK,RIM.

The LOCK,RIM is a the manufacturer industrial component. Key specifications include thickness: 0.625 INCHES MINIMUM MEMBER IN, design_type: COMBINATION, special_features: CROSS THROW-BOLT TRAVEL; FIVE PUSHBUTTONS SELECT COMBINATION; INCL BLACK TRIM PLATE, surface_treatment: CHROMIUM CASE, locking_mechanism_type: PUSH BUTTON. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-286-9130, 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
1740A45
NSN: 5340-01-286-9130
FSC: 5340 — Hardware, Commercial
CAGE: 39428 — MCMASTER-CARR SUPPLY CO (USA)
SPECIFICATIONS
thickness0.625 INCHES MINIMUM MEMBER IN
design_typeCOMBINATION
special_featuresCROSS THROW-BOLT TRAVEL; FIVE PUSHBUTTONS SELECT COMBINATION; INCL BLACK TRIM PLATE
surface_treatmentCHROMIUM CASE
locking_mechanism_typePUSH BUTTON
NSN5340-01-286-9130
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1740A45 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
•
LOCKING MECHANISM TYPE: PUSH BUTTON
•
DESIGN TYPE: COMBINATION
•
SURFACE TREATMENT: CHROMIUM CASE
•
THICKNESS: 0.625 INCHES MINIMUM MEMBER IN
TECHNICAL CHARACTERISTICS
LOCKING MECHANISM TYPEPUSH BUTTON
DESIGN TYPECOMBINATION
SPECIAL FEATURESCROSS THROW-BOLT TRAVEL; FIVE PUSHBUTTONS SELECT COMBINATION; INCL BLACK TRIM PLATE
SURFACE TREATMENTCHROMIUM CASE
THICKNESS0.625 INCHES MINIMUM MEMBER 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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1740A45?
1740A45 is a LOCK,RIM.
What is the NSN for 1740A45?
1740A45 is cataloged in the U.S. Government catalog under NSN 5340-01-286-9130. 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.