The Screw,cap,socket Head, cataloged under National Stock Number 5305-00-838-9800, is classified within Federal Supply Class 5305 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. Government technical data includes 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 5305-00-838-9800 |
| Primary Part Number | 30155-2-4 |
| Item Name | Screw,cap,socket Head |
| FSC / FSG | 5305 / 53 — No Item Name Available |
| Manufacturer | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems |
| Status | CANCELLED |
| Head Height | 0.038 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN |
| Spline Minor Diameter | 0.040 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN |
| Material Document and Classification | SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL |
| Hardness Rating | 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL |
| Thread Quantity Per Inch | 56 |
| Thread Direction | RIGHT-HAND |
| Thread Length | 0.250 INCHES MINIMUM IN |
| Nominal Thread Diameter | 0.086 INCHES IN |
| Thread Series Designator | UNIFIED NATIONAL COARSE (UNC) |
| Material | STEEL COMP 4037 OVERALL |
| Fastener Length | 0.250 INCHES NOMINAL IN |
| Head Diameter | 0.154 INCHES MINIMUM AND 0.164 INCHES MAXIMUM IN |
| Spline Width | 0.010 INCHES MINIMUM AND 0.011 INCHES MAXIMUM IN |
| Thread Class | 3A A |
| Internal Drive Style | SIX SPLINE |
| Spline Major Diameter | 0.049 INCHES MINIMUM AND 0.050 INCHES MAXIMUM IN |
| Head Style | BUTTON |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 2-56-4 | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA) |
| 2-56-4 | Bristol Babcock Inc Instruments-Systems Div Sub of Babcock Intl Inc (USA) |
| 30155-2-4 | Bristol Babcock Inc Instruments-Systems Div Sub of Babcock Intl Inc (USA) |
| 30155-2-4 PRIMARY | Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA) |
NSN 5305-00-838-9800 is a Screw,cap,socket Head, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 5305 (No Item Name Available). Status: cancelled.
NSN 5305-00-838-9800 has 4 cross-referenced part numbers: 2-56-4 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems), 2-56-4 (Bristol Babcock Inc Instruments-Systems Div Sub of Babcock Intl Inc), 30155-2-4 (Bristol Babcock Inc Instruments-Systems Div Sub of Babcock Intl Inc), 30155-2-4 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems).
There are 12 known substitutes for 5305-00-838-9800: 3455-00-266-9450, 6810-00-281-7450, 6810-00-281-7452 and 9 more. Verify interchangeability with system specifications before substitution.
Key specifications for 30155-2-4: Head Height: 0.038 INCHES MINIMUM AND 0.046 INCHES MAXIMUM IN; Spline Minor Diameter: 0.040 INCHES MINIMUM AND 0.041 INCHES MAXIMUM IN; Material Document and Classification: SAE ASSN STD SINGLE MATERIAL RESPONSE OVERALL; Hardness Rating: 36.0 ROCKWELL C MINIMUM AND 43.0 ROCKWELL C MAXIMUM OVERALL. 17 total characteristics are documented in the Federal Logistics Information System.
NSN 5305-00-838-9800 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.