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Technical Data Sheet

TD42L 1/2NPT — TRAP,STEAM

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

TD42L 1/2NPT: TRAP,STEAM.

The TRAP,STEAM is a the manufacturer industrial component. Key specifications include body_design: STRAIGHT PATTERN, design_type: THERMOSTATIC, furnished_items: STRAINER, thread_direction: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED, end_item_identification: STRATEGIC SEALIFT CONVERSION SHHIPS CLASS, screw_thread_series_designator: NPT LOCATION NOT OTHERWISE SPECIFIED. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-440-6931, 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
TD42L 1/2NPT
NSN: 4730-01-440-6931
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 53059 — SPIRAX SARCO INC DBA SPIRAX SARCO (USA)
SPECIFICATIONS
body_designSTRAIGHT PATTERN
design_typeTHERMOSTATIC
furnished_itemsSTRAINER
thread_directionRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
end_item_identificationSTRATEGIC SEALIFT CONVERSION SHHIPS CLASS
screw_thread_series_designatorNPT LOCATION NOT OTHERWISE SPECIFIED
NSN4730-01-440-6931
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: TD42L 1/2NPT · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
DESIGN TYPE: THERMOSTATIC
•
THREAD DIRECTION: RIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
•
SCREW THREAD SERIES DESIGNATOR: NPT LOCATION NOT OTHERWISE SPECIFIED
•
BODY DESIGN: STRAIGHT PATTERN
•
FURNISHED ITEMS: STRAINER
TECHNICAL CHARACTERISTICS
DESIGN TYPETHERMOSTATIC
THREAD DIRECTIONRIGHT-HAND LOCATION NOT OTHERWISE SPECIFIED
SCREW THREAD SERIES DESIGNATORNPT LOCATION NOT OTHERWISE SPECIFIED
BODY DESIGNSTRAIGHT PATTERN
END ITEM IDENTIFICATIONSTRATEGIC SEALIFT CONVERSION SHHIPS CLASS
FURNISHED ITEMSSTRAINER
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
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 TD42L 1/2NPT?
TD42L 1/2NPT is a TRAP,STEAM.
What is the NSN for TD42L 1/2NPT?
TD42L 1/2NPT is cataloged in the U.S. Government catalog under NSN 4730-01-440-6931. 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.