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1A20806H53 — SCREW,MACHINE

✓ Government record, cited
— · BOLT SCREW
PRODUCT OVERVIEW

1A20806H53: SCREW,MACHINE.

The SCREW,MACHINE is a the manufacturer industrial component. Key specifications include head_style: PAN NO. 2, head_height: 0.105 INCHES NOMINAL IN, thread_class: 2A A, head_diameter: 0.365 INCHES NOMINAL IN, thread_length: 1.250 INCHES MAXIMUM IN, screw_material: COPPER ALLOY.

This part is cataloged in the U.S. Government catalog under NSN 5305-00-844-9159, 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
1A20806H53
NSN: 5305-00-844-9159
FSC: 5305 — Screws
CAGE: 97942 — NORTHROP GRUMMAN SYSTEMS CORPORATION DBA NORTHROP GRUMMAN SYSTEMS CORP (USA)
SPECIFICATIONS
head_stylePAN NO. 2
head_height0.105 INCHES NOMINAL IN
thread_class2A A
head_diameter0.365 INCHES NOMINAL IN
thread_length1.250 INCHES MAXIMUM IN
screw_materialCOPPER ALLOY
fastener_length1.250 INCHES NOMINAL IN
thread_directionRIGHT-HAND
internal_drive_styleCROSS RECESS TYPE 1
nominal_thread_diameter0.190 INCHES IN
screw_surface_treatmentCADMIUM
thread_quantity_per_inch32
NSN5305-00-844-9159
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1A20806H53 · 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
•
HEAD HEIGHT: 0.105 INCHES NOMINAL IN
•
SCREW SURFACE TREATMENT: CADMIUM
•
FASTENER LENGTH: 1.250 INCHES NOMINAL IN
•
SCREW MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE
•
THREAD LENGTH: 1.250 INCHES MAXIMUM IN
•
NOMINAL THREAD DIAMETER: 0.190 INCHES IN
•
HEAD STYLE: PAN NO. 2
•
THREAD DIRECTION: RIGHT-HAND
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.105 INCHES NOMINAL IN
SCREW SURFACE TREATMENTCADMIUM
FASTENER LENGTH1.250 INCHES NOMINAL IN
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-626 FED SPEC SINGLE MATERIAL RESPONSE
THREAD LENGTH1.250 INCHES MAXIMUM IN
NOMINAL THREAD DIAMETER0.190 INCHES IN
HEAD STYLEPAN NO. 2
THREAD DIRECTIONRIGHT-HAND
SCREW MATERIALCOPPER ALLOY
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
OTHER ITEMS IN FSC 5305 — Screws
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5305-00-000-0094 5305-00-000-1397 5305-00-000-2625 5305-00-000-3669 5305-00-000-3830 5305-00-000-3831
SUBSTITUTES & CROSS-REFERENCES 1
331C201B1032C20Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1A20806H53?
1A20806H53 is a SCREW,MACHINE.
What parts can replace 1A20806H53?
There is 1 known substitute for 1A20806H53: 331C201B1032C20. Substitute compatibility should be verified for your specific system.
What is the NSN for 1A20806H53?
1A20806H53 is cataloged in the U.S. Government catalog under NSN 5305-00-844-9159. 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.