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4750-3-28RAF — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4750-3-28RAF: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, thread_length: 0.100 INCHES NOMINAL RIGHT INTERNAL IN, thread_direction: RIGHT-HAND LEFT EXTERNAL, width_across_flats: 0.188 INCHES NOMINAL IN, cross-sectional_shape: HEXAGON, material_document_and_classification: ASTM-A108-1999 NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-504-2645, 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
4750-3-28RAF
NSN: 5340-01-504-2645
FSC: 5340 — Hardware, Commercial
CAGE: 3L891 — STANDARD BOLT NUT AND SCREW CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
thread_length0.100 INCHES NOMINAL RIGHT INTERNAL IN
special_featuresLENGTH OF STANDOFF IS 0.188 IN; LENGTH OF LEFT PROJECTION IS 0.313 IN;RIGHT INTERNAL THREAD IS COUNTER-BORED WITH A COUNTER SUNK BEVEL;CONTROLLING AGENCY NAME IS JACKSOCKET IN
thread_directionRIGHT-HAND LEFT EXTERNAL
width_across_flats0.188 INCHES NOMINAL IN
cross-sectional_shapeHEXAGON
material_document_and_classificationASTM-A108-1999 NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
NSN5340-01-504-2645
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4750-3-28RAF MFR: OEM ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
WIDTH ACROSS FLATS: 0.188 INCHES NOMINAL IN
•
THREAD LENGTH: 0.100 INCHES NOMINAL RIGHT INTERNAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM-A108-1999 NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
•
THREAD DIRECTION: RIGHT-HAND RIGHT INTERNAL
•
CROSS-SECTIONAL SHAPE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.188 INCHES NOMINAL IN
THREAD LENGTH0.100 INCHES NOMINAL RIGHT INTERNAL IN
THREAD LENGTH0.313 INCHES NOMINAL LEFT EXTERNAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONASTM-A108-1999 NATIONAL SPEC ALL MATERIAL RESPONSES OVERALL
THREAD DIRECTIONRIGHT-HAND RIGHT INTERNAL
THREAD DIRECTIONRIGHT-HAND LEFT EXTERNAL
CROSS-SECTIONAL SHAPEHEXAGON
SPECIAL FEATURESLENGTH OF STANDOFF IS 0.188 IN; LENGTH OF LEFT PROJECTION IS 0.313 IN;RIGHT INTERNAL THREAD IS COUNTER-BORED WITH A COUNTER SUNK BEVEL;CONTROLLING AGENCY NAME IS JACKSOCKET IN
MATERIALSTEEL OVERALL
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 4750-3-28RAF?
4750-3-28RAF is a STANDOFF,THREADED,SPACING.
What is the NSN for 4750-3-28RAF?
4750-3-28RAF is cataloged in the U.S. Government catalog under NSN 5340-01-504-2645. This indicates validated use in U.S. government and defense supply chains.
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