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172478 — SCREW,TAPPING

✓ Government record, cited
Hama · BOLT SCREW
PRODUCT OVERVIEW

172478: SCREW,TAPPING.

- 3D phone skin for inserting into a suitable cover - A fun and funky way of updating your smartphone with 3D effects - Motifs can be exchanged as often as required. Key specifications include material: STEEL OVERALL, head_style: HEXAGON, head_height: 0.270 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN, fastener_length: 0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN, features_provided: CASEHARDENED, surface_treatment: CADMIUM OR ZINC OVERALL. This part is cataloged in the U.S.

Government catalog under NSN 5305-01-186-1208, 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
172478
NSN: 5305-01-186-1208
FSC: 5305 — Screws
CAGE: 7X677 — GENERAL MOTORS LLC DBA GENERAL MOTORS LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
head_styleHEXAGON
head_height0.270 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN
fastener_length0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
features_providedCASEHARDENED
surface_treatmentCADMIUM OR ZINC OVERALL
width_between_flats0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
internal_drive_styleW/O INTERNAL DRIVE
nonmachine_thread_styleTHRU SLOT (TYPE D)
nonmachine_nominal_thread_diameter0.375 INCHES IN
material_document_and_classificationG-6010-M,FSCM 11862 MFR REF SINGLE MATERIAL RESPONSE OVERALL
surface_treatment_document_and_classification-4252-M,FSCM 11862 FED SPEC ALL TREATMENT RESPONSES OR G-4342-M CODE 20,FSCM 11862 MFR REF 2ND TREATMENT RESPONSE OVERALL
NSN5305-01-186-1208
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 172478 · Hama ⚠ 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
•
NONMACHINE NOMINAL THREAD DIAMETER: 0.375 INCHES IN
•
HEAD HEIGHT: 0.270 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN
•
FASTENER LENGTH: 0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: -4252-M,FSCM 11862 FED SPEC ALL TREATMENT RESPONSES OR G-4342-M CODE 20,FSCM 11862 MFR REF 2ND TREATMENT RESPONSE OVERALL
•
NONMACHINE THREAD STYLE: THRU SLOT (TYPE D)
•
MATERIAL DOCUMENT AND CLASSIFICATION: G-6010-M,FSCM 11862 MFR REF SINGLE MATERIAL RESPONSE OVERALL
•
FEATURES PROVIDED: CASEHARDENED
•
HEAD STYLE: HEXAGON
TECHNICAL CHARACTERISTICS
NONMACHINE NOMINAL THREAD DIAMETER0.375 INCHES IN
HEAD HEIGHT0.270 INCHES MINIMUM AND 0.295 INCHES MAXIMUM IN
FASTENER LENGTH0.470 INCHES MINIMUM AND 0.530 INCHES MAXIMUM IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION-4252-M,FSCM 11862 FED SPEC ALL TREATMENT RESPONSES OR G-4342-M CODE 20,FSCM 11862 MFR REF 2ND TREATMENT RESPONSE OVERALL
NONMACHINE THREAD STYLETHRU SLOT (TYPE D)
MATERIAL DOCUMENT AND CLASSIFICATIONG-6010-M,FSCM 11862 MFR REF SINGLE MATERIAL RESPONSE OVERALL
FEATURES PROVIDEDCASEHARDENED
HEAD STYLEHEXAGON
WIDTH BETWEEN FLATS0.551 INCHES MINIMUM AND 0.562 INCHES MAXIMUM IN
SURFACE TREATMENTCADMIUM OR ZINC OVERALL
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

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 172478?
172478 is a SCREW,TAPPING manufactured by Hama.
What is the NSN for 172478?
172478 is cataloged in the U.S. Government catalog under NSN 5305-01-186-1208. This indicates validated use in U.S. government and defense supply chains.
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