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853901 — SEPARATOR,WATER,AIRCRAFT AIR CON

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

853901: SEPARATOR,WATER,AIRCRAFT AIR CON.

SEPARATOR,WATER,AIRCRAFT AIR CON. Key specifications include head_style: FLAT COUNTERSUNK, thread_class: 2A A, head_diameter: 0.568 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN, thread_length: 0.375 INCHES NOMINAL IN, screw_material: STEEL, fastener_length: 0.542 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 5305-00-272-5021, 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
853901
NSN: 5305-00-272-5021
NIINs: 002725021, 009437868, 014938002
FSC: 5305 — Screws
CAGE: 89749 — CLARK MATERIAL HANDLING COMPANY (USA)
SPECIFICATIONS
head_styleFLAT COUNTERSUNK
thread_class2A A
head_diameter0.568 INCHES MINIMUM AND 0.583 INCHES MAXIMUM IN
thread_length0.375 INCHES NOMINAL IN
screw_materialSTEEL
fastener_length0.542 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
thread_directionRIGHT-HAND
countersink_angle60.0 DEGREES NOMINAL
internal_drive_styleSLOT
nominal_thread_diameter0.375 INCHES IN
screw_surface_treatmentCADMIUM
thread_quantity_per_inch16
NSN5305-00-272-5021
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 853901 · OEM ⚠ VERIFY BEFORE ORDERING Verify thread pitch before ordering — metric (M8×1.25) ≠ imperial (5/16-18). Wrong thread = wrong part. Grade/class stamped on bolt head determines tensile strength ✓ BROKER TIP Grade/class stamped on head determines tensile strength. Grade 8 > Grade 5 > Grade 2. Always confirm head marking matches specification requirement PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
SCREW SURFACE TREATMENT: CADMIUM
•
FASTENER LENGTH: 0.542 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
•
THREAD LENGTH: 0.375 INCHES NOMINAL IN
•
NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD STYLE: FLAT COUNTERSUNK
•
THREAD DIRECTION: RIGHT-HAND
•
SCREW MATERIAL: STEEL
•
INTERNAL DRIVE STYLE: SLOT
TECHNICAL CHARACTERISTICS
SCREW SURFACE TREATMENTCADMIUM
FASTENER LENGTH0.542 INCHES MINIMUM AND 0.572 INCHES MAXIMUM IN
THREAD LENGTH0.375 INCHES NOMINAL IN
NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD STYLEFLAT COUNTERSUNK
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALSTEEL
INTERNAL DRIVE STYLESLOT
COUNTERSINK ANGLE60.0 DEGREES NOMINAL
THREAD CLASS2A A
SUBSTITUTES & CROSS-REFERENCES 1
MZ38CReference 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 853901?
853901 is a SEPARATOR,WATER,AIRCRAFT AIR CON.
What parts can replace 853901?
There is 1 known substitute for 853901: MZ38C. Substitute compatibility should be verified for your specific system.
What is the NSN for 853901?
853901 is cataloged in the U.S. Government catalog under NSN 5305-00-272-5021. 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.