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10-442 — SWITCH,THERMOSTATIC

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

10-442: SWITCH,THERMOSTATIC.

Premium quality is achieved by using appropriate thick cardboard, a special non-reflective layer, and puzzle pieces’ perfect fitting. Key specifications include material: COPPER ALLOY, body_style: INTERNAL FLANGE W/EXTERNAL LOCKING FLANGE, body_width: 2.312 INCHES NOMINAL IN, body_height: 2.180 INCHES MAXIMUM IN, body_length: 2.375 INCHES NOMINAL IN, corner_shape: SQUARE OUTSIDE RIGHT CORNER. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-382-8644, 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→ 10-442
NSN: 5310-00-382-8644
NIINs: 003828644, 003988020, 006486645, 007272775, 013002680, 015027609, 015738356, 016607123
FSC: 5310 — Nuts and Washers
CAGE: 50019 — READY POWER CO THE (USA)
SPECIFICATIONS
materialCOPPER ALLOY
body_styleINTERNAL FLANGE W/EXTERNAL LOCKING FLANGE
body_width2.312 INCHES NOMINAL IN
body_height2.180 INCHES MAXIMUM IN
body_length2.375 INCHES NOMINAL IN
corner_shapeSQUARE OUTSIDE RIGHT CORNER
thread_class3A SINGLE PRESSURE CONNECTION A
chamfer_angle15.0 DEGREES NOMINAL OUTSIDE LEFT CORNER
corner_radius0.250 INCHES NOMINAL INSIDE RIGHT CORNER IN
overall_width1.090 INCHES NOMINAL IN
terminal_typeWIRE LEAD
thread_length0.625 INCHES NOMINAL SINGLE PRESSURE CONNECTION IN
NSN5310-00-382-8644
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 10-442 · Trefl ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
SUBSTITUTES & CROSS-REFERENCES 7
564A4Reference document
Same NSN cross-reference
Reference document — Secondary reference
850186Reference document
Same NSN cross-reference
Reference document — Secondary reference
5559Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
577A4Reference document
Same NSN cross-reference
Reference document — Secondary reference
133GC12Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
552A4Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 10-442?
10-442 is a SWITCH,THERMOSTATIC manufactured by Trefl. It is classified as a MRO (MRO_GENERAL).
What parts can replace 10-442?
There are 7 known substitutes for 10-442: 564A4, 850186, 5559 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 10-442?
10-442 is cataloged in the U.S. Government catalog under NSN 5310-00-382-8644. 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.