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DPR366-524 — STANDOFF,THREADED,SPACING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

DPR366-524: STANDOFF,THREADED,SPACING.

The STANDOFF,THREADED,SPACING is a the manufacturer industrial component. Key specifications include length: 0.875 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN, material: STEEL COMP 303 OR STEEL COMP 303SE OVERALL, thread_length: 0.380 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN, special_features: THREAD INFO IS THE SAME FOR THE INTERNAL AND EXTERNAL THREADS, style_designator: LEFT INTERNAL AND RIGHT EXTERNAL THREAD, thread_direction: RIGHT-HAND RIGHT EXTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-390-0512, 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
DPR366-524
NSN: 5340-00-390-0512
FSC: 5340 — Hardware, Commercial
CAGE: 61081 — SCHROFF INC (USA)
SPECIFICATIONS
length0.875 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
materialSTEEL COMP 303 OR STEEL COMP 303SE OVERALL
thread_length0.380 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
special_featuresTHREAD INFO IS THE SAME FOR THE INTERNAL AND EXTERNAL THREADS
style_designatorLEFT INTERNAL AND RIGHT EXTERNAL THREAD
thread_directionRIGHT-HAND RIGHT EXTERNAL
width_across_flats0.250 INCHES NOMINAL IN
nominal_thread_size0.164 INCHES RIGHT EXTERNAL IN
cross-sectional_shapeHEXAGON
right_projection_length0.430 INCHES NOMINAL IN
thread_series_designatorUNIFIED NATIONAL COARSE (UNC) RIGHT EXTERNAL
right_projection_diameter0.164 INCHES NOMINAL IN
NSN5340-00-390-0512
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: DPR366-524 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: 0.250 INCHES NOMINAL IN
•
LENGTH: 0.875 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.380 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
•
STYLE DESIGNATOR: LEFT INTERNAL AND RIGHT EXTERNAL THREAD
•
THREAD DIRECTION: RIGHT-HAND RIGHT EXTERNAL
•
NOMINAL THREAD SIZE: 0.164 INCHES RIGHT EXTERNAL IN
•
CROSS-SECTIONAL SHAPE: HEXAGON
TECHNICAL CHARACTERISTICS
WIDTH ACROSS FLATS0.250 INCHES NOMINAL IN
LENGTH0.875 INCHES MINIMUM AND 0.885 INCHES MAXIMUM IN
THREAD LENGTH0.380 INCHES NOMINAL LEFT INTERNAL (INCLUDES THRU THREAD) IN
THREAD LENGTH0.370 INCHES NOMINAL RIGHT EXTERNAL IN
STYLE DESIGNATORLEFT INTERNAL AND RIGHT EXTERNAL THREAD
THREAD DIRECTIONRIGHT-HAND RIGHT EXTERNAL
NOMINAL THREAD SIZE0.164 INCHES RIGHT EXTERNAL IN
CROSS-SECTIONAL SHAPEHEXAGON
SPECIAL FEATURESTHREAD INFO IS THE SAME FOR THE INTERNAL AND EXTERNAL THREADS
MATERIALSTEEL COMP 303 OR STEEL COMP 303SE OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
8158-524Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
844-524Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is DPR366-524?
DPR366-524 is a STANDOFF,THREADED,SPACING.
What parts can replace DPR366-524?
There are 2 known substitutes for DPR366-524: 8158-524, 844-524. Substitute compatibility should be verified for your specific system.
What is the NSN for DPR366-524?
DPR366-524 is cataloged in the U.S. Government catalog under NSN 5340-00-390-0512. 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.