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1003-S742 — ADAPTER,STRAIGHT,FLANGE TO TUBE

✓ Government record, cited
— · GATE VALVE
PRODUCT OVERVIEW

1003-S742: ADAPTER,STRAIGHT,FLANGE TO TUBE.

ADAPTER,STRAIGHT,FLANGE TO TUBE. Key specifications include material: STEEL CORROSION RESISTING, thread_class: 2B FIRST END, overall_length: 1.750 INCHES NOMINAL IN, pressure_class: ERR-060, connection_type: UNTHREADED INTERNAL TUBE ALL ENDS, flange_diameter: 1.682 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4820-01-720-7953, 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
1003-S742
NSN: 4820-01-720-7953
FSC: 4820 — Valves, Nonpowered
CAGE: 05NC7 — REPUBLIC BRASS SALES INC. DBA REPUBLIC BRASS SALES INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
thread_class2B FIRST END
overall_length1.750 INCHES NOMINAL IN
pressure_classERR-060
connection_typeUNTHREADED INTERNAL TUBE ALL ENDS
flange_diameter1.682 INCHES NOMINAL IN
connection_styleSOCKET (TUBE) ALL ENDS
special_features700 PSI.RATING.
style_designatorSTRAIGHT THRU
thread_directionRIGHT-HAND FIRST END
features_providedTHREADED
surface_treatmentCHROMIUM
NSN4820-01-720-7953
COMPONENT DIAGRAM
GATE VALVE — FULL OPEN OR FULL CLOSE ONLY Rising STEM BONNET FLOW → → FLOW SEATS — — SIZE: — · — · — PN: 1003-S742 · OEM ⚠ VERIFY BEFORE ORDERING Gate valves = FULL OPEN or FULL CLOSE only — never throttle. Partial opening causes seat erosion and vibration. ✓ BROKER TIP Rising stem shows valve position visually — easier maintenance. Non-rising stem saves headroom. PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
OTHER ITEMS IN FSC 4820 — Valves, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4820-00-000-0097 4820-00-001-0010 4820-00-001-0020 4820-00-001-0021 4820-00-001-0032 4820-00-001-0037 4820-00-001-0042 4820-00-001-1230
SUBSTITUTES & CROSS-REFERENCES 1
803-5001003Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 1003-S742?
1003-S742 is a ADAPTER,STRAIGHT,FLANGE TO TUBE.
What parts can replace 1003-S742?
There is 1 known substitute for 1003-S742: 803-5001003. Substitute compatibility should be verified for your specific system.
What is the NSN for 1003-S742?
1003-S742 is cataloged in the U.S. Government catalog under NSN 4820-01-720-7953. 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.