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Technical Data Sheet
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1178-4-4 — Technical Data Sheet

✓ Verified by PartsTable
— · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Grade/class stamped on head determines strength Metric and imperial threads look similar — measure pitch
Verify thread pitch — metric != imperial
PRODUCT OVERVIEW

The SUPPORT,RADIO RECEIVER is a the manufacturer industrial component. Key specifications include material: STEEL AND STEEL CORROSION RESISTING, overall_width: 0.250 INCHES MAXIMUM IN, overall_length: 2.969 INCHES NOMINAL IN, surface_treatment: CADMIUM OR PASSIVATE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System under NSN 5305-00-151-1388, 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
MRO→ MRO_GENERAL→ 1178-4-4
NSN: 5305-00-151-1388
FSC: 5305
CAGE: 80020 — NAVAL AIR WARFARE CENTER AIRCRAFT DIVISION JOINT BASE JBMDL (USA)
SPECIFICATIONS
materialSTEEL AND STEEL CORROSION RESISTING
overall_width0.250 INCHES MAXIMUM IN
overall_length2.969 INCHES NOMINAL IN
surface_treatmentCADMIUM OR PASSIVATE
NSN5305-00-151-1388
COMPONENT DIAGRAM
BOLT / SCREW — THREAD VERIFICATION REQUIRED Hex HEAD LENGTH: — THREAD: — × — MATERIAL: — PN: 1178-4-4 · 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: 0.086 INCHES MAXIMUM IN
•
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: QQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
•
SCREW MATERIAL: STEEL OR STEEL COMP 1010
•
THREAD QUANTITY PER INCH: 48
•
FASTENER LENGTH: 0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
•
THREAD CLASS: 2A A
•
HEAD DIAMETER: 0.193 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
•
INTERNAL DRIVE STYLE: CROSS RECESS TYPE 1
TECHNICAL CHARACTERISTICS
HEAD HEIGHT0.086 INCHES MAXIMUM IN
SCREW SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-P-416,TY 1,CL 3 FED SPEC SINGLE TREATMENT RESPONSE
SCREW MATERIALSTEEL OR STEEL COMP 1010
THREAD QUANTITY PER INCH48
FASTENER LENGTH0.219 INCHES MINIMUM AND 0.250 INCHES MAXIMUM IN
THREAD CLASS2A A
HEAD DIAMETER0.193 INCHES MINIMUM AND 0.211 INCHES MAXIMUM IN
INTERNAL DRIVE STYLECROSS RECESS TYPE 1
SCREW MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-630 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-631 FED SPEC 2ND MATERIAL RESPONSE OR QQ-S-634 FED SPEC 2ND MATERIAL RESPONSE
HEAD STYLEROUND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
653778-044InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
200-0556-00InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
8121700001-1InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
FFS92ANDTYPE3ANDSTYLE1CInterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
AN520-4R4InterchangeableGOVERNMENT REGISTRY
Same NIIN cross-reference
interchangeable
A2052603-1InterchangeableGOVERNMENT REGISTRY
Support,radio Receiver
interchangeable
LIFECYCLE
StatusACTIVEGOVERNMENT REGISTRY
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1178-4-4?
1178-4-4 is a SUPPORT,RADIO RECEIVER. It is classified as a MRO (MRO_GENERAL).
What parts can replace 1178-4-4?
There are 12 known substitutes for 1178-4-4: 653778-044, 200-0556-00, 8121700001-1 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1178-4-4?
1178-4-4 is cataloged in the Federal Logistics Information System under NSN 5305-00-151-1388. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: October 2026