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D3 — RESISTOR,FIXED,COMPOSITION

✓ Government record, cited
Middle Atlantic Products · MRO · MRO_GENERAL
PRODUCT OVERVIEW

D3: RESISTOR,FIXED,COMPOSITION.

EIA compliant 19” rackmount drawer shall be Middle Atlantic Products model # D3. Drawer shall have an overall height of 5-1/4”, and useable depth of 14-1/2”. Drawer base shall be 20-gauge steel, top and sides shall be 16-gauge steel.

Drawer faceplate shall be .090” thick aluminum with a black brushed & anodized finish. Drawer shall use full extension, ball bearing slides. Grommet shall be provided for safely passing cables through the cable entry point at the rear of the drawer on 2, 3 and 4 space models.

2, 3 and 4 space drawers shall include a no-slip drawer mat. Drawer shall have a 50 lb. weight capacity.

Drawer shall be warrantied to be free from defects in materials or workmanship under normal use and conditions for a period of three years. Drawer shall be UL Listed in the US and Canada. Drawer shall be GREENGUARD Indoor Air Quality Certified for Children and Schools.

Drawer shall be RoHS EU Directive 2002/95/EC compliant. Drawer shall be manufactured by an ISO 9001 and ISO 14001 This part is cataloged in the U.S. Government catalog under NSN 4730-00-034-7752, indicating validated use in U.S.

government and defense logistics supply chains.

WHERE IT FITS
MRO→ MRO_GENERAL→ D3
NSN: 4730-00-034-7752
NIINs: 000347752, 001008514, 001077132, 001424425, 002511555, 003368912, 003426344, 005007768, 007242883, 009553189, 010151452, 010365583, 010406421, 012377171, 013597098, 013598136, 013653742, 015781891, 017177908
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 80691 — EVER TITE COUPLING CO INC (USA)
SPECIFICATIONS
materialSTEEL AND ALUMINUM
end_styleSPRING END,SQUARED AND GROUND BOTH ENDS
leg_length1.250 INCHES NOMINAL IN
body_length2.000 INCHES NOMINAL IN
design_typeNONREUSABLE
temp_rating250.0 FAHRENHEIT MAXIMUM DEGF
corner_shapeSQUARE ALL CORNERS
flange_width0.2500 INCHES NOMINAL IN
body_diameter2.562 INCHES NOMINAL IN
bore_diameter0.1900 INCHES NOMINAL IN
drop_pressureERR-060
overall_width19.0 INCHES NOMINAL IN
NSN4730-00-034-7752
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: D3 · Middle Atlantic Products ⚠ 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
•
CONNECTION STYLE: GASKET SEAL ALL ENDS
•
STYLE DESIGNATOR: MALE COUPLING HALF
•
LEG LENGTH: 1.250 INCHES NOMINAL IN
•
NOMINAL THREAD SIZE: 3.000 INCHES ALL ENDS IN
•
THREAD QUANTITY PER INCH: 8 ALL ENDS
•
MATERIAL: COPPER ALLOY BODY
•
THREAD SERIES DESIGNATOR: NH ALL ENDS
TECHNICAL CHARACTERISTICS
CONNECTION STYLEGASKET SEAL ALL ENDS
STYLE DESIGNATORMALE COUPLING HALF
OVERALL LENGTH3.500 INCHES NOMINAL IN
LEG LENGTH1.250 INCHES NOMINAL IN
NOMINAL THREAD SIZE3.000 INCHES ALL ENDS IN
THREAD QUANTITY PER INCH8 ALL ENDS
MATERIALCOPPER ALLOY BODY
THREAD SERIES DESIGNATORNH ALL ENDS
SUBSTITUTES & CROSS-REFERENCES 2
45C2500Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
DReference 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 D3?
D3 is a RESISTOR,FIXED,COMPOSITION manufactured by Middle Atlantic Products. It is classified as a MRO (MRO_GENERAL).
What parts can replace D3?
There are 2 known substitutes for D3: 45C2500, D. Substitute compatibility should be verified for your specific system.
What is the NSN for D3?
D3 is cataloged in the U.S. Government catalog under NSN 4730-00-034-7752. 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.