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345517-1 — SWITCH,THERMOSTATIC

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

345517-1: SWITCH,THERMOSTATIC.

The SWITCH,THERMOSTATIC is a the manufacturer industrial component. Key specifications include material: ALUMINUM ALLOY OVERALL, hinge_pin: NOT INCLUDED, knuckle_type: FRICTION, knuckle_length: 0.600 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN, overall_length: 33.400 INCHES NOMINAL IN, knuckle_quantity: 26. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-440-0903, 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
MRO→ MRO_GENERAL→ 345517-1
NSN: 5340-00-440-0903
NIINs: 004400903, 010783519
FSC: 5340 — Hardware, Commercial
CAGE: 98897 — LOCKHEED MARTIN CORP (USA)
SPECIFICATIONS
materialALUMINUM ALLOY OVERALL
hinge_pinNOT INCLUDED
knuckle_typeFRICTION
knuckle_length0.600 INCHES MINIMUM AND 0.610 INCHES MAXIMUM IN
overall_length33.400 INCHES NOMINAL IN
knuckle_quantity26
performance_typeNOT RATED
style_designatorBUTT BLANK
surface_treatmentANODIZE OVERALL
material_thickness0.060 INCHES NOMINAL IN
reversible_featureNOT INCLUDED
hinge_mounting_typeFULL SURFACE
NSN5340-00-440-0903
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 345517-1 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
•
REVERSIBLE FEATURE: NOT INCLUDED
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: LAC 0494 FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE OVERALL
•
KNUCKLE INSIDE DIAMETER: 0.100 INCHES NOMINAL IN
•
STYLE DESIGNATOR: BUTT BLANK
•
PIN CENTER TO BODY EDGE DISTANCE: 0.850 INCHES NOMINAL IN
•
HINGE MOUNTING TYPE: FULL SURFACE
•
HINGE PIN: NOT INCLUDED
TECHNICAL CHARACTERISTICS
REVERSIBLE FEATURENOT INCLUDED
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONLAC 0494 FSCM 98897 MFR REF SINGLE TREATMENT RESPONSE OVERALL
KNUCKLE INSIDE DIAMETER0.100 INCHES NOMINAL IN
STYLE DESIGNATORBUTT BLANK
OVERALL LENGTH33.400 INCHES NOMINAL IN
PIN CENTER TO BODY EDGE DISTANCE0.850 INCHES NOMINAL IN
HINGE MOUNTING TYPEFULL SURFACE
HINGE PINNOT INCLUDED
MATERIAL THICKNESS0.060 INCHES NOMINAL IN
KNUCKLE QUANTITY26
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 345517-1?
345517-1 is a SWITCH,THERMOSTATIC. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 345517-1?
345517-1 is cataloged in the U.S. Government catalog under NSN 5340-00-440-0903. 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.