Brass Female × Male Hex Nipples

Brass hex adapters with rigid female and male threaded connections. Available in same-size, reducing and increasing configurations, with thread combinations listed below.

Size Range	3/4″–6″, depending on configuration
Material	Brass
Thread Options	NPT / NPSH / NST (NH) / GHT / NYFD
Connection	Male Thread × Male Thread

Product Options

Select the male thread size and thread type for each end. Matching-size and reducing configurations are listed below.

Female × Male Hex Adapter

Alternative Configuration

Representative image. Dimensions and proportions vary by size and thread configuration. Confirm both end specifications before ordering.

NPT / NST (NH) Combinations

NPT Female × NPSH Male

Female Thread	Male Thread	Part No.
1″ NPT	1″ NPSH	SPT-FM1010
1-1/2″ NPT	1-1/2″ NPSH	SPT-FM1515
2″ NPT	2″ NPSH	SPT-FM2020
2-1/2″ NPT	2-1/2″ NPSH	SPT-FM2525

NPT Female × NST (NH) Male

Female Thread	Male Thread	Part No.
1″ NPT	1″ NST (NH)	SPT-FM1010F
1″ NPT	1-1/2″ NST (NH)	SPT-FM1015F
1-1/2″ NPT	1-1/2″ NST (NH)	SPT-FM1515F
1-1/2″ NPT	2-1/2″ NST (NH)	SPT-FM1525F
1-1/2″ NPT	3″ NST (NH)	SPT-FM1530F
2″ NPT	1-1/2″ NST (NH)	SPT-FM2015F
2″ NPT	2-1/2″ NST (NH)	SPT-FM2025F
2-1/2″ NPT	2-1/2″ NST (NH)	SPT-FM2525F
3″ NPT	2-1/2″ NST (NH)	SPT-FM3025F
3″ NPT	3″ NST (NH)	SPT-FM3030F
4″ NPT	2-1/2″ NST (NH)	SPT-FM4025F
4″ NPT	4″ NST (NH)	SPT-FM4040F
4″ NPT	4-1/2″ NST (NH)	SPT-FM4045F
6″ NPT	6″ NST (NH)	SPT-FM6060F

NST (NH) Female × NPT Male

Female Thread	Male Thread	Part No.
1″ NST (NH)	1″ NPT	SPT-FM10F10T
1-1/2″ NST (NH)	1-1/2″ NPT	SPT-FM15F15T
1-1/2″ NST (NH)	2″ NPT	SPT-FM15F20T
1-1/2″ NST (NH)	2-1/2″ NPT	SPT-FM15F25T
2-1/2″ NST (NH)	3/4″ NPT	SPT-FM25F75T
2-1/2″ NST (NH)	1″ NPT	SPT-FM25F10T
2-1/2″ NST (NH)	1-1/2″ NPT	SPT-FM25F15T
2-1/2″ NST (NH)	2″ NPT	SPT-FM25F20T
2-1/2″ NST (NH)	2-1/2″ NPT	SPT-FM25F25T
2-1/2″ NST (NH)	3″ NPT	SPT-FM25F30T
3″ NST (NH)	2-1/2″ NPT	SPT-FM30F25T
3″ NST (NH)	3″ NPT	SPT-FM30F30T
4″ NST (NH)	4″ NPT	SPT-FM40F40T
4-1/2″ NST (NH)	4″ NPT	SPT-FM45F40T

NST (NH) Female × NST (NH) Male

Female Thread	Male Thread	Part No.
1-1/2″ NST (NH)	1-1/2″ NST (NH)	SPT-FM15F15F
1-1/2″ NST (NH)	2-1/2″ NST (NH)	SPT-FM15F25F
2-1/2″ NST (NH)	2-1/2″ NST (NH)	SPT-FM25F25F
2-1/2″ NST (NH)	3″ NST (NH)	SPT-FM25F30F
3″ NST (NH)	2-1/2″ NST (NH)	SPT-FM30F25F

NPSH / GHT Combinations

Other NPSH Combinations

Female Thread	Male Thread	Part No.
2″ NPSH	1-1/2″ NPSH	SPT-FM20S15
1-1/2″ NPSH	1-1/2″ NST (NH)	SPT-FM15S15F
2″ NPSH	1-1/2″ NST (NH)	SPT-FM20S15F
2″ NPSH	2-1/2″ NST (NH)	SPT-FM20S25F
2-1/2″ NPSH	2-1/2″ NST (NH)	SPT-FM25S25F
3″ NPSH	2-1/2″ NST (NH)	SPT-FM30S25F
1-1/2″ NPSH	1-1/2″ NPT	SPT-FM15S15T
2-1/2″ NPSH	2-1/2″ NPT	SPT-FM25S25T
1-1/2″ NST (NH)	2-1/2″ NPSH	SPT-FM15F25S
2-1/2″ NST (NH)	2-1/2″ NPSH	SPT-FM25F25S

GHT Combinations & NPT Female × NPT Male

Female Thread	Male Thread	Part No.
1″ NPT	3/4″ GHT	SPT-FM1076
1″ NPSH	3/4″ GHT	SPT-FM10S76
3/4″ GHT	1″ NPT	SPT-FM7610T
3″ NPT	2-1/2″ NPT	SPT-FM3025T

NYFD / NYC Combinations

NYFD & NYC Thread Combinations

Female Thread	Male Thread	Part No.
1-1/2″ NYFD	1-1/2″ NST (NH)	SPT-FM15NYFD15F
2-1/2″ NYFD	2-1/2″ NST (NH)	SPT-FM25NYFD25F
2-1/2″ NYFD	2-1/2″ NYFD	SPT-FM25NYFD25NYFD
2-1/2″ NYFD	2-1/2″ NPT	SPT-FM25NYFD25T
1-1/2″ NST (NH)	1-1/2″ NYFD	SPT-FM15F15NYFD
2-1/2″ NST (NH)	2-1/2″ NYFD	SPT-FM25F25NYFD
1-1/2″ NPT	1-1/2″ NYFD	SPT-FM1515NYFD
2-1/2″ NPT	2-1/2″ NYFD	SPT-FM2525NYFD
2-1/2″ NPT	2-1/2″ NYC	SPT-FM2525NYC
2-1/2″ NYC	2-1/2″ NPT	SPT-FM25NYC25T
2-1/2″ NYC	2-1/2″ NST (NH)	SPT-FM25NYC25F
2-1/2″ NST (NH)	2-1/2″ NYC	SPT-FM25F25NYC