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2D638 — DEFLECTOR,DIRT AND LIQUID

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

2D638: DEFLECTOR,DIRT AND LIQUID.

The DEFLECTOR,DIRT AND LIQUID is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1008 OR STEEL COMP 1015, body_length: 1.812 INCHES NOMINAL IN, flange_length: 0.938 INCHES NOMINAL IN, inside_diameter: 1.936 INCHES MINIMUM AND 1.939 INCHES MAXIMUM IN, outside_diameter: 4.187 INCHES NOMINAL IN, special_features: SLOTTED HUB END 0.2812 IN. W 0.750 IN.

DEEP IN. This part is cataloged in the U.S. Government catalog under NSN 2520-00-709-7274, 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
2D638
NSN: 2520-00-709-7274
FSC: 2520 — Vehicular Power Transmission Components
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialSTEEL COMP 1008 OR STEEL COMP 1015
body_length1.812 INCHES NOMINAL IN
flange_length0.938 INCHES NOMINAL IN
inside_diameter1.936 INCHES MINIMUM AND 1.939 INCHES MAXIMUM IN
outside_diameter4.187 INCHES NOMINAL IN
special_featuresSLOTTED HUB END 0.2812 IN. W 0.750 IN. DEEP IN
style_designatorROUND, FLANGED
material_thickness0.060 INCHES NOMINAL IN
fsc_application_dataVEHICULAR PROPELLER SHAFT
NSN2520-00-709-7274
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available DEFLECTOR,DIRT AND LIQUID TITLE COMPONENT PN 2D638 MFR DEFLECTOR,DIRT AND LIQ
KEY FEATURES
•
FSC APPLICATION DATA: VEHICULAR PROPELLER SHAFT
•
STYLE DESIGNATOR: ROUND, FLANGED
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66 FED STD 1ST MATERIAL RESPONSE OR AISI 1008 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1008 ASSN STD SINGLE MATERIAL RESPONSE AND FED STD 66 FED STD 2ND MATERIAL RESPONSE OR AISI 1015 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1015 ASSN STD SINGLE MATERIAL RESPONSE
•
OUTSIDE DIAMETER: 4.187 INCHES NOMINAL IN
•
FLANGE LENGTH: 0.938 INCHES NOMINAL IN
•
MATERIAL THICKNESS: 0.060 INCHES NOMINAL IN
•
BODY LENGTH: 1.812 INCHES NOMINAL IN
•
INSIDE DIAMETER: 1.936 INCHES MINIMUM AND 1.939 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAVEHICULAR PROPELLER SHAFT
STYLE DESIGNATORROUND, FLANGED
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66 FED STD 1ST MATERIAL RESPONSE OR AISI 1008 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1008 ASSN STD SINGLE MATERIAL RESPONSE AND FED STD 66 FED STD 2ND MATERIAL RESPONSE OR AISI 1015 ASSN STD SINGLE MATERIAL RESPONSE OR SAE 1015 ASSN STD SINGLE MATERIAL RESPONSE
OUTSIDE DIAMETER4.187 INCHES NOMINAL IN
FLANGE LENGTH0.938 INCHES NOMINAL IN
MATERIAL THICKNESS0.060 INCHES NOMINAL IN
BODY LENGTH1.812 INCHES NOMINAL IN
INSIDE DIAMETER1.936 INCHES MINIMUM AND 1.939 INCHES MAXIMUM IN
SPECIAL FEATURESSLOTTED HUB END 0.2812 IN. W 0.750 IN. DEEP IN
MATERIALSTEEL COMP 1008 OR STEEL COMP 1015
OTHER ITEMS IN FSC 2520 — Vehicular Power Transmission Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
2520-00-005-4937 2520-00-006-6257 2520-00-008-9977 2520-00-039-6567 2520-00-242-3316 2520-00-358-3905 2520-00-366-7191 2520-00-708-6603
SUBSTITUTES & CROSS-REFERENCES 3
667441Reference document
Same NSN cross-reference
Reference document — Secondary reference
7097274Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
588961Reference document
Same NSN cross-reference
Reference document — Secondary reference
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 2D638?
2D638 is a DEFLECTOR,DIRT AND LIQUID.
What parts can replace 2D638?
There are 3 known substitutes for 2D638: 667441, 7097274, 588961. Substitute compatibility should be verified for your specific system.
What is the NSN for 2D638?
2D638 is cataloged in the U.S. Government catalog under NSN 2520-00-709-7274. 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.