AS9120B, ISO 9001:2015, and FAA AC 0056B Accredited
| Item Name | Ring Retaining |
| Federal Supply Group (FSG) | Hardware and Abrasives |
| Federal Supply Class (FSC) | 5325 Fastening Devices |
| National Item Identification Number (NIIN) | 01-312-1219 (013121219) |
| NCB Code | USA (01) |
| Manufacturer | Military Specifications, Spirolox Inc, West Salem Machinery Company, Caterpillar Inc, Smalley Steel Ring Co |
| Part Number | Manufacturer | Item Name | RFQ |
|---|---|---|---|
| M27426-4183A | military specifications | ring retaining | RFQ |
| RRN-775 | spirolox inc | ring retaining | RFQ |
| 663573 | west salem machinery company | ring retaining | RFQ |
| 663573 | caterpillar inc | ring retaining | RFQ |
| M2742640183A | military specifications | ring retaining | RFQ |
| MIL-R-27426 | military specifications | ring retaining | RFQ |
| MIL-DTL-27426/4 | military specifications | ring retaining | RFQ |
| WHM-775 | smalley steel ring co | ring retaining | RFQ |
| MRC | Criteria | Characteristic |
|---|---|---|
| AARX | INSIDE DIAMETER | 7.321 INCHES MINIMUM AND 7.391 INCHES MAXIMUM |
| ABMC | MAJOR THICKNESS | 0.182 INCHES MINIMUM AND 0.192 INCHES MAXIMUM |
| ABKV | OUTSIDE DIAMETER | 8.157 INCHES MINIMUM AND 8.227 INCHES MAXIMUM |
| SR-1 | DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | M27426-4183A |
| ALME | MATERIAL HARDNESS RATING | 40.0 ROCKWELL C MINIMUM AND 51.5 ROCKWELL C MAXIMUM |
| AWQD | STRENGTH RATING | 211000.0 POUNDS PER SQUARE INCH MINIMUM TENSILE |
| SR-1 | MANUFACTURERS CODE | 81349 |
| ACXD | RING STYLE | SPECIAL FLAT |
| SR-1 | NON-DEFINITIVE GOVERNMENT SPEC/STD REFERENCE | MIL-R-27426 |
| SR-1 | SPEC/STD CONTROLLING DATA | |
| AAGR | CROSS-SECTIONAL SHAPE STYLE | DOUBLE OVAL |
| MATL | MATERIAL | STEEL, FED STD 66, COMP 1070 OR STEEL, FED STD 66, COMP 1072 OR STEEL, FED STD 66, COMP 1074 OR STEEL, FED STD 66, COMP 1075 OR STEEL, FED STD 66, COMP 1078 OR STEEL, FED STD 66, COMP 1080 OR STEEL, FED STD 66, COMP 1084 OR STEEL, FED STD 66, COMP 1085 OR STEEL, FED STD 66, COMP 1086 OR STEEL, FED STD 66, COMP 1090 |
| ALBY | USAGE DESIGN | INTERNAL |
| AASG | CASEHARDENING INDICATOR | NOT CASEHARDENED |
| Relevant Components for NSN - 5325-01-312-1219, 5325013121219 | ||||
| 5320-01-311-2514 (5320013112514) | 5365-01-606-7886 (5365016067886) | 5310-01-687-5946 (5310016875946) | 5331-01-345-2325 (5331013452325) | |
| 5331-01-137-6352 (5331011376352) | 5340-01-677-5187 (5340016775187) | 5310-01-215-1121 (5310012151121) | 5330-01-558-9303 (5330015589303) | |
| 5320-01-007-1870 (5320010071870) | 5365-00-542-0989 (5365005420989) | 5305-01-279-0723 (5305012790723) | 5315-01-181-8363 (5315011818363) | |
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