The Connector,receptacle,electrical, cataloged under National Stock Number 5935-01-171-8728, is classified within Federal Supply Class 5935 (Connectors, Electrical) of the Electrical and Electronic Equipment Components group. The manufacturer of record is Ultra Pcs Limited Div Ultra Electronics Precision Air and Land Systems. Government technical data includes 27 specifications, cited from the U.S. Government catalog. The record lists 2 manufacturer part numbers for this item, enabling identification through both NSN and commercial part number lookups. 16 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 5935-01-171-8728 |
| Primary Part Number | CEN312028 |
| Item Name | Connector,receptacle,electrical |
| FSC / FSG | 5935 / 59 — Connectors, Electrical |
| Manufacturer | Ultra Pcs Limited Div Ultra Electronics Precision Air and Land Systems |
| Status | ACTIVE |
| Connector Locking Method | EXTERNALLY THREADED SHELL |
| Thread Tolerance Class | 6G EXTERNAL G |
| Shell Type | SOLID |
| Body Style | STRAIGHT SHAPE, EXTERNAL COUPLING |
| Terminal Type | CRIMP SINGLE MATING END SINGLE CONTACT GROUPING |
| Contact Material | COPPER ALLOY SINGLE MATING END SINGLE CONTACT GROUPING |
| Mating End Quantity | 1 |
| Precious Material | GOLD |
| Contact Position Arrangement Style | 15-35 SINGLE MATING END |
| Thread Pitch in Millimeters | 1.00 |
| Shell Surface Treatment | CADMIUM |
| Insert Position in Deg | 0.0 |
| Precious Material and Weight | 0.037 GOLD GRAINS, TROY |
| Terminal Location | BACK SINGLE MATING END SINGLE CONTACT GROUPING |
| Center to Center Distance Between Mounting Facilities Parallel to Height | 23.0 MILLIMETERS MINIMUM AND 24.6 MILLIMETERS MAXIMUM MM |
| Included Contact Quantity | 37 SINGLE MATING END SINGLE CONTACT GROUPING |
| Shell Surface Treatment Document and Classification | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE |
| Thread Direction | RIGHT-HAND |
| Nominal Thread Size | 22.0 MILLIMETERS AND 1.000 INCHES MM |
| Specification/standard Data | 81349-MIL-C-38999/20 GOVERNMENT SPECIFICATION |
| Included Contact Type | ROUND PIN SINGLE MATING END SINGLE CONTACT GROUPING |
| Distance Between Centerlines of Mounting Facilities Parallel to Body Width | 23.0 MILLIMETERS MINIMUM AND 24.6 MILLIMETERS MAXIMUM MM |
| Polarization Method | KEYWAY OR MULTIPLE KEYWAY |
| Environmental Protection | MOISTURE PROOF AND SALT WATER RESISTANT AND VIBRATION PROOF |
| Precious Material and Location | CONTACT SURFACES GOLD |
| Distance From Mounting Shoulder to Front Face | 20.9 MILLIMETERS MAXIMUM MM |
| Contact Removability | NONREMOVABLE SINGLE MATING END SINGLE CONTACT GROUPING |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | Possible hazard — SDS may be required (DLA HMIC P) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| CEN312028 | Ultra Pcs Limited Div Ultra Electronics Precision Air and Land Systems (GBR) |
| FE100-0020-340N | Bae Systems Maritime Services (GBR) |
| Reference | Meaning |
|---|---|
| D38999/20WD35PN | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| 42321-978-00-1 | 5/9 Secondary reference British Aerospace Defence Systems Ltd T/a Bae Systems |
| 10204893 | 6/9 Informative reference only Nimikkeistokeskus Ncb Finland |
| GD00809672 | 5/1 Secondary reference General Dynamics United Kingdom Ltd |
| SV808936 ITEM 10 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| MIL-C-38999/20 | 5/9 Secondary reference U.S. Government activity |
| M38999/20WD35PN | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
| CEN312028 | 5/9 Secondary reference Ultra Electronics Precision Air & Land Systems |
| SV809020 ITEM 217 | C/1 Advisory reference — outside the item-of-supply concept Hamilton Sundstrand Corporation Dba Collins Aerospace |
| MIL-DTL-38999/20 | 4/1 Identification reference U.S. Government activity |
| DOD-C-38999/20 | 5/9 Secondary reference U.S. Government activity |
| CEN312028 | 5/9 Secondary reference Ultra Electronics Ltd (electronics Division) |
| 42321-978-00-1 | C/1 Advisory reference — outside the item-of-supply concept Bae Systems Maritime Services Limited |
| 39-10155-00 | 5/1 Secondary reference Fimac Spa Dba Fimac Spa |
| D38999/20WD35PN | 2/2 Government specification standardization U.S. Government activity |
| SV809020 ITEM 217 | C/1 Advisory reference — outside the item-of-supply concept U.S. Government activity |
NSN 5935-01-171-8728 is a Connector,receptacle,electrical, manufactured by Ultra Pcs Limited Div Ultra Electronics Precision Air and Land Systems, classified under FSC 5935, Connectors, Electrical. Status: active.
NSN 5935-01-171-8728 has 2 manufacturer part numbers on file: CEN312028 (Ultra Pcs Limited Div Ultra Electronics Precision Air and Land Systems), FE100-0020-340N (Bae Systems Maritime Services).
Key specifications for CEN312028: Overall Height: 30.7 MILLIMETERS MINIMUM AND 31.3 MILLIMETERS MAXIMUM MM; Connector Locking Method: EXTERNALLY THREADED SHELL; Thread Tolerance Class: 6G EXTERNAL G; Shell Type: SOLID. 27 specifications are documented in the U.S. Government catalog.
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.